AU656047B2 - Pesticides - Google Patents

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AU656047B2
AU656047B2 AU30316/92A AU3031692A AU656047B2 AU 656047 B2 AU656047 B2 AU 656047B2 AU 30316/92 A AU30316/92 A AU 30316/92A AU 3031692 A AU3031692 A AU 3031692A AU 656047 B2 AU656047 B2 AU 656047B2
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compound
formula
hydrogen
alkyl
compounds
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AU3031692A (en
Inventor
Robert J. Blade
George S. Cockerill
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Sanofi Aventis France
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Roussel Uclaf SA
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N49/00Biocides, pest repellants or attractants, or plant growth regulators, containing compounds containing the group, wherein m+n>=1, both X together may also mean —Y— or a direct carbon-to-carbon bond, and the carbon atoms marked with an asterisk are not part of any ring system other than that which may be formed by the atoms X, the carbon atoms in square brackets being part of any acyclic or cyclic structure, or the group, wherein A means a carbon atom or Y, n>=0, and not more than one of these carbon atoms being a member of the same ring system, e.g. juvenile insect hormones or mimics thereof
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/02Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
    • C07C233/11Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an unsaturated carbon skeleton containing six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/02Systems containing only non-condensed rings with a three-membered ring

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Environmental Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Agronomy & Crop Science (AREA)
  • Insects & Arthropods (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Pyridine Compounds (AREA)

Description

P/00/01 1 656047 Regutation 3.2
AUSTRALIA,
PATENTS ACT 1990 COMPLETE SPECEFICATION FOR A STANDARD PATENT
ORIGINAL
TO BE.4LTD YAPCN Inenio TOle BPESCIDPE" YAPLCN of Nanw of Appgict nownELtoJCL:- *L 0 0 la
PESTICIDES
This Application is a continuation in part of USSN 729847 filed 7th December, 1991.
This invention relates to pesticidal compounds, processes for their preparation, compositions containing them and to their use in the treatment of pests.
Unsaturated amides having a methylene chain of 1 to at least carbon atoms optionally including at least one oxygen or additional methylene group are known as pesticides or insecticides having various terminating groups which include within their scope optionally substituted phenyl (European Application Nos. 228222, 194764, 225011, Japanese Application No 57-212150, Meisters and Wailes: Aust. J. Chem. 1966, 19, 1215, Vig et al J. Ind. Chem. Soc. 1974, 51(9), 817) or pyridyl (European Application 269457) or fused bicyclic ring system (European Application Nos. 143593, 228853), dihalovinyl 20 or optionally substituted ethynyl (European Application 228222).
No disclosure is made of any cycloalkyl interstitial group linking the diene unit to the terminating group.
H.O. Huisman et al, Rev. trav. chim.. 77, 97-102, (1958) discloses a group of 5-(2,6,6-trimethyl cyclohexenyl)2,4pentadienamides as insecticides.
30 European Patent Application 369762A Patent Application SN 07/436803) provides a compound of formula Q Q CR2 CR 3 CR4 CRsC NHR 1 or a salt thereof, wherein Q is an monocyclic aromatic ring, or fused bicyclic ring system of which at least one ring is aromatic containing 9 or 10 atoms of which one may be nitrogen and the rest carbon each ring system being optionally 2 substituted, or Q is a dihalovinyl group or a group R 6
-C=C-
where R 6 is C 1 -4 alkyl, tri Cl_ 4 alkylsilyl, halogen or hydrogen; Q 1 is a 1,2-cyclopropyl ring optionally substituted by one or more groups selected from C1-3 alkyl, halo, C1-3 haloalkyl, alkynyl, or cyano; R2,R 3
R
4 and R 5 are the same or different with at least one being hydrogen and the others being independently selected from hydrogen, halo C 1 4 alkyl ac-ad. 1S14 or C_1 4 haloalkyl; X is oxygen or sulphur; and -e-selected from hydrogen and C 1 -8 hydrocarbyl optionally substituted by dioxalanyl, halo, cyano, trifluoromethyl, trifluoromethylthio or C1-6 alkoxy.
It has now been discovered that certain enantiomers of the compounds of the formula have a surprisingly high level of insecticidal activity compared to the other isomers.
Accordingly, the present invention provides a compound of the formula l i
R
3
R
wherein Q and 4 R) are as hereinbefore defined and X is hydrogen, fluoro or chloro.
n Q is a monocyclic aromatic ring, this is suitably phenyl, pyridyl or thienyl and preferably phenyl. When Q is a bicyclic ring system, this is preferably naphthyl.
When Q contains a substituted aromatic system, suitable substituents include one to four groups selected from C 1 6 hydrocarbyl, c 1 6 alkoxy or methylenedioxy, each optionally s substituted by one to three halos, or from halo, cyano or nitro, or the substituent is a group S(0)nR 7 wherein n is 0, 1 or 2 and R 7 is C 1 -6 alkyl optionally substituted by one or more halos or R 7 is amino optionally substituted by one or two C1-6 alkyl groups or the substituent is a group NRgR 9 where R 8 and R 9 are independently selected from hydrogen, C 1 -6 alkyl or a group COR 10 where R 10 is C1-6 alkyl.
The Q ring system normally contains up to three substituents and is suitably unsubstituted or substituted by one, two or three substituents such as halo or C1- 4 haloalkyl such as trifluoromethyl. The substitution of the Q ring system depends upon the nature of this ring system but is preferably at the 3, 4 or 5 positions when Q is a 6-membered ring.
Suitably R 2
R
3
R
4 and R 5 are chosen from hydrogen, methyl or fluoro. Suitably the stereochemistry of the double bonds is Suitably when R3 or R 5 is fluoro then the stereochemistry of the double bond to which R 3 or Rg is attached is Preferably R 2 is hydrogen, R 3 is hydrogen or fluoro, R 20 is hydrogen or fluoro and R 4 is hydrogen or C_1 4 alkyl, most preferably methyl.
Suitably R 1 is alkyl optionally substituted by cycloalkyl, dioxalanyl, or Rl is C 2 -5 alkenyl. Most suitably R 1 is a branched chain C 4 6 alkyl group, such as isobutyl, 1,2-dimethylpropyl, 1,1,2-trimethyl propyl, 2,2-dimethylpropyl or R1 is 2-methylprop-2-enyl or (2-methyl-l,3-dioxalan-2-yl) methyl.
Preferably R 1 is isobutyl or 2-methyl-prop-2-enyl where R 2 and
R
3 are hydrogen, R 4 is methyl and Rg is hydrogen or methyl.
Preferably the stereo metric configuration of the cyclopropyl group in the chain is such that the group Q and the carbon side chain are attached to the ring to give trans geometry.
When X 1 is fluoro or chloro, the absolute configuration about the cyclopropane ring is preferably (1R,2S). When X 1 is hydrogen, the absolute configuration about the cyclopropane ring is preferablv (1S,2R).
4 One suitable group of compounds of the formula is that of the formula (II): R R 0 5 2 a 4 a Qa I N x a R 3 a R 5 a Rla or a salt thereof, wherein Qa is a substituted phenyl or pyridyl group; Xia is hydrogen, fluoro or chloro; R2a'R3a'R 4 a and R5a are the same or different with at least one being hydrogen and the others being independently selected from hydrogen, halo, C 1 4 alkyl or C 1 4 haloalky. and Rla is selected from hydrogen and C 1 -6 hydrocarbyl optionally substituted by dioxalanyl, halo, cyano, trifluoromethyl, 20 trifluoromethyithia or alkoxy.
Suitable~ substituents for Qa include one or mors groups selected from halo, cyano, nitro, C 1 alkyl, Cj-6 alkoxy and methylenedioxy, each optionally substituted by one to five halos or the substituent is a group S(O)nR 7 a wherein n is 0, 1 or 2 and R7a is Cj- 6 alkyl optionally substituted by halo or 0~ R7a is amino.
suitably R2a 1R 3 at R4a and R5a are chosen from hydrogen, 30 methyl, or fluoro.
Suitably0 -6 i alkyl optionally substituted by Suditxably l or R1 is C 2 5 alkenyl. Most suitably Ra is a branched chain C 4 6 alkyl grotip, such as isobutyl, 1,2-dimethylpropyl, 1,1,2-trimethyl pr~pyl, 2,2-dimethyipropyl or Ria is 2-methyl-prop-2-enyl or (2-methyl-i, 3-dioxalan-2-yl) methyl. Preferably Ria is isobutyl or 2-methylprop-2-enyl where R 2 a and R3a are hydrogen and R 4 is methyl.
One preferred group of compounds of the formula (II) includes those wherein R2a, R3a and R5a are each hydrogen.
A further preferred group of compounds of the present invention includes those of formula wherein R 2 is hydrogen.
Preferred compounds include those wherein Q is substituted phenyl, R 4 is methyl or hydrogen, R 2 is hydrogen, R 3 and R are hydrogen or fluoro and R 1 is isobutyl or 1,2-dimethylpropyl or 2-methylprop-2-enyl and X is oxygen or sulphur.
Thus, prefetred compounds of the formula include: (c refers to the substituent cis, relative to another substituent) (-)-(2E,4E)-N-(2-Methylprop-2-enyl)-5-(R,2S)-.c-2-(3,4-dibromophenyl-) -r-1-fluorocyclopropyl) -3-methylpenta-2, 4-dienamide dibromophenyl) -r-l-fluorocyclopropyl) -3-methylpenta-2 ,4-diento** amide (+)-(2E,4E)-N-(2-Methylprop'-2-enyJ4-5-(1S,2R)-c-2-(3,4-dibromophenyl-) -r-1-fluorocyclopropylj -3-methylpenta-2 ,4-dienamide dibromophenyl) -r-l-fluorocyclopropyl] -3-methylpenta-2 ,4-dien- 30 amide -(2E,4E) -N-Isobutyl-5-( (I12R)-c-(3,4-dichlorophenyl) -r-lchlorocyclopropyl] -3-methylpenta-2 ,4-dienamide 4E) (S-1-Methylpropyl) 2S) 4-dichlorophenyl)-r-1-chlorocyclopropylJ-3-methylpenta-2,4-dienamide -Methylpropyl)-5-[((R,2S)-c-(3,4-dichlorophenyl)-r-1-ch"Lroyiclopropyl -3-methylpenta-2,4-dienamide (-)-(2E/,4E)-N-Isobutyl-5-(1S,2R)-trans-2-(3,4-dibromophenyl)cyclopropylj-3-methylpenta-2,4-dienamide (+)-(2E/Z,4E)-N-Iscbutyl-5I(1R,2S)-trans-2-(3,4-dibromophenyl)cyclopropyl-3-methylpenta-2,4-dienamide By the term halo is meant fluoro, chioro, bromo and iodo.
By the term hydrocarbyl group is meant, alkyl, alkenyl, alkynyl, aralkyl including a cyclic alkyl or alkenyl group optionally substituted by alkyl, alkenyl or alkynyl; and alkyl or alkenyl substituted by cyclic alkyl and alkenyl, aid phenyl groups.
Salts of the compounds of the present invention will normally be acid addition salts. Such salts may be formed from mineral @egos: or organic acids. Preferred salts include those formed from ~hydrochloric, hydrobromic, sulphuric, citric, nitric, S44: tartaric, phosphoric, lactic, benzoic, glutamic, aspartic, pyruvic, acetic, succinic, fumaric, maleic, oxaloaceti, hydroxynaphthoic, isethionic, stearic, methane-suiphonic, ethanesulphonic, benzenesulphonic, toluene-p-sulphonic, lactobionic, glucuronic, thiocyanic, propionic, embonic, *i naphthenoic and perchloric acids.
30 in a further aspect, the present invention provides a process for the preparation of a compound of the formula as hereinbefore defined which comprises: *44444 I. a) a reaction of oxidation of a suitable alcohol of formula Q2 -OH (01)
R
2 wherein R 2 is as hereinbefore defined to obtain the corresponding aldehyde of formula Q2-C=O (IIIA)
R
2 b) which is submitted through a Wittig type reaction, to a reactive compound able to introduce the group in which R 3
R
4
R
5 and Z 1 are as herein- R3 R 4
R
5 0 before defined, then to action of an amine H 2
NR
I wherein R 1 is as hereinbefore defined and Z, is hydroxy, Ci-6 alkoxy, halo or of a phosphoroimidate ester NH-aryl where aryl is (C 6 10 aryl).
and optionally thereafter converting one compound of the formula into another compound of the formula by methods well known to those skilled in the art.
20 Process is normally carried out at a non-extreme temperature, for example between -25' and 150'C in an anhydrous aprotic solvent, such as ether, dichloromethane, toluene or benzene. The precise conditions will be dependent on the nature of the group Z
I
for example when Z I is alkoxy the reaction is conveniently carried out at an elevated temperature, i.e. 50 to 125'C, and conveniently at reflux, prefetably in the presence of a trialkylaluminium compound, :such as trimethylaluminium, which forms a complex with the amine H2NR. When Z 1 it halo or phosphoroimidate the reaction 30 is conveniently carried out at 0' to 30'c and suitably at room iemperature preferably in the presence of a tertiary amine, such as triethylamine.
If the acid derivative is an acid halide, for example the acid chloride, then it may be formed from the corresponding acid by reaction with a suitable reagent such as oxalyl chloride or thionyl chloride. When Z, is a phosphoroimidate group then this is suitably formed from (PhO)P(fO)NHPhCl where Ph is phenyl. The acid, or the acid function in the compound
Q
2
CR
2 3 C3CR 4
=CR
5
COZ
1 may be prepared by hydrolysis of the corresponding ester wherein Q 2 represents the group:
H
The esters may be prepared by a number of alternative routes, for example: conventional Wittig or Wadsworth-Emmons reaction, using for example an aldehyde and ethoxycarbonylmethylene triphenylphosphorane or an anion from triethylphosphonocrotonate or 3-methyl triethylphosphonocrotonate. This latter 20 reaction may result in an isomeric mixture, for example a mixture of and substituted dienoates; such a mixture S" may be reacted as above, and the resulting mixture of amidos separated by chromatography or other convenient techniques.
The Wittig-type reagent may be produced for example by the following route or a modification thereof: S 9(1) (3) (CH3)2C=CHCO2Et Z2CH 2
C(CH
3
)&CHCO
2 Et Wittig/Wadsworth- Emmons reagent wherein Z 2 (aryl) 3 P (aryl) 2 P(o) or (C 1 4 alkoxy) 2 P(O) where aryl is preferably phenyl and alkoxy is preferably ethoxy.
N-bromo succinimide e.g. (EtO) 3 P or (Ph) 3
P
This reaction is normally carried out in the presence of a base such as lithium diisopropylamide, butyllithium, sodium alkoxide or sodium hydride.
(ii) by rearrangement and elimination of HS( 0)Z 3 from a compound of formula: 0)Z 3
Q
2
CHR
2
CHR
3
CR
4
C
C0 2
Z
4 wherein Q 2 R2,R 3 and R4 are as hereinbefore defined, Z 3 is any suitable group, eg phenyl, substituted phenyl such as 4-chlorophenyl or C1- 4 alkyl, for example methyl, Z 4 is CI_ 4 alkyl, e.g. methyl or cthyl.
The above compound may be obtained by reaction of a compound Q 2
CHR
2
CHR
3 CR40 with a compound Z 3
S(O)CH
2
CO
2
Z
4 (iii) By elimination on a compound 20 reaction is preferably carried out in an aromatic solvent, conveniently in the presence of a molybdenum catalyst and a base, such as bis-trimethyl silylacetamide.
The above compound may be obtained by the reaction of a suitable aldehyde with a suitable sulphenyl compound, followed by acylation.
(iv) reaction of a compound of formula Q 2 CR2=CR 3 C(=O)R4 with 30 one of formula Me 3 SiCHR 5
CO
2
Z
4 wherein Q 2
,R
2 to Rg, X 1 "to •and Z 4 are as hereinbefore defined.
This process may be carried out in an anhydrous solvent, e.g. tetrahydrofuran in the absence of oxygen, in the presence of a base, e.g. lithium cyclohexylisopropyl amide.
by reaction of a compound of formula
Q
2 CR2=CR 3
C(OZ
6
)=CR
5
CO
2
Z
4 with a compound of formula R 4
M
1 wherein Q 2
X
1
,R
2 ,R3,R 4
,R
5 and Z4 are as hereinbefore defined, Z 6 is a suitable group such as dialkylphosphate or trifluoromethanesulphonate and M1 is a metal such as copper or copper associated with lithium or magnesium.
This process can be performed at low temperature in an anhydrous ethereal solvent such as diethyl ether, dimethyl sulphide or tetrahydrofuran in the absence of oxygen.
(vi) by reaction of a compound of formula Q 2
CR
2
=CR
3
M
2 with one of formula Y CR 4
=CR
5
CO
2
Z
4 wherein Q 2
,X
1
,R
2
,R
3
,R
4
,R
and Z4 are as hereinbefore defined, Y is halo or tin and
M
2 is a silyl or aetal containing group, such as trimethylsilyl or a group containing zirconium, tin, aluminum or zinc, for example a bis(cyclopentadienyl) zirconium chloride group. This process is normally carried out at a non-extreme temperature i.e. between 0 and 100oC and conveniently at room temperature, in a non-aqueous ethereal solvent such as tetrahydrofuran, in the presence of a palladium catalyst, (such as bis (triphenylphosphine)palladium) and under an inert atmosphere of nitrogen or argon.
(vii) by elimination of Z 3 S( 0)H from a compound of formula
Q
2
CR
2
=CR
3
CHR
4 R C0 2
Z
4 S(->o)Z3 wherein Q 2 Xi, R 2
R
3
R
4 RSg Z 3 and Z4 are as herein before defined.
The above compound may be obtained by reaction of a compound QCHR 2
CR
3 aCHR 4 with Z 3 S(0)CH 2
CO
2
Z
4 Process may be carried out by having an aldehyde or ketone group attached either to the amide/thioamide terminus or to the Q 2 fragment of formula and then reacting this with the appropriate phosphorousylid.
i.e. Q 2
(CR
2
=CR
3
)COR
4
Z
2
CHR
5 .C(=0)NHR 1 or
Q
2
COR
2
Z
2
CHR
3
.CR
4
=CR
5
.C(=O)NHR
1 or
Q
2
(CR
2
=CR
3
)CHR
5
Z
2
R
5
CO.C(=O)NH.R
1 wherein Q 2
R
2
R
3
R
4
R
5
R
1 and Z 2 are as hereinbefore defined.
Process is carried out in an anhydrous inert solvent, for example an ether such as tetrahydrofuran, optionally in the presence of a base, and preferably in the absence of oxygen, e.g. under a nitrogen atmosphere, at a low temperature to 20'c). The phosphorous ylid may be obtained from its precursor as described above by reaction with a base such as lithium diisopropylamide, butyllithium, sodium alkoxide or sodium hydride. Compounds of the formula wherein X is 20 sulphur are preferably prepared by process when Z 2 is a group (Cl, 4 alkoxy) 2 P=0.
O
9* The aldehyde intermediates Q 2
CR
2 =0 may be prepared by acid oe 2hydrolysis of a ketal, enol ether or acetal in a solvent such 25 as acetone-water or by oxidation of the appropriate alcohols using for example pyridinium chlorochromate, pyridinium dichromate or oxalyl chloride-dimethyl sulphoxide in a solvent such as dichloromethane. The aldehydes may also be prepared by reduction of the appropriate nitriles with a reagent such 30 as diisobutylaluminium hydride in hexane.
48 The alcohols may be prepared by a) reaction of Q 2 CH=CXgOH with (Z 7 )2M 2 and CH 2
X
3 2 where X 2 is a group such as hydrogen, fluoro, chloro or methyl X 3 is a halogen such as iodine, Z 7 is C 1 -4 alkyl group such as ethyl and M 2 a metal such as zinc, in an inert solvent such as hexane or dichloromethane at moderate temperature to +20'C) and CH 2 and CH=CX 2 combine to form the cyclypropane ring, or b) reduction of an ester Q 2
CO
2
Z
4 or of the appropriate carboxylic acid with for instance diisobutylaluminium hydride or diborane in an inert solvent such as dichloromethane or tetrahydrofuran at moderate temperature to 25'C). The esters may be prepared by reaction of a diazoacetate N2CH.CO 2
Z
4 with a compound QCH=CH 2 in the presence of a copper containing catalyst such as copper sulphate where CH and CH=CH 2 'mbine to form Q 1 The esters may also be prepared by the reaction of
QCH=CHCO
2
Z
4 with an anion derived from MezS(O)mC(Z 7 )2 where Z 7 is hydrogen or C 1 6 alkyl and m is 1 or 2.
The resultant alcohol is separated into its enantiomers by the formation of a diastereomeric mixture by reaction with a suitable resolving agent, such as R-phenethyl isocyanate when X1 is fluoro, and camphorsulphonyl chloride When X 1 is chloro followed by fractional crystallisation to obtain the desired diastereoisomers and cleavage of the resolving agent, using sodium ethoxide in ethanol when X1 is fluoro and sodium eta* acetate in diglyme when X, is chloro.
When X1 is hydrogen, the enantiomeric alsehyde intermediate QQjCHO may alternatively be prepared by assymetric induction of the trans cyclopropyl ring. This may be carried out by 99 reaction of a compound of the formula wherein Q is as hereinbefore defined and Pr i is isopropyl.
9.
°2 1 9 (IV) (Iv) 6 2 Pr.
with diiodomethane and diethylzinc in hexane to give the wherein Q and Pr i are as hereinbefore defined: S CO2 Pr i H 0
(V)
10 co Pr
H
The dioxolane ring is then removed by acid hydrolysis, for example using dilute hydrochloric acid in tetrahydrofuran.
The compound of the formula (IV) may be prepared as shown in Scheme.
The intermediates of the present invention form a further aspect of the present invention and may be prepared where appropriate by standard methods other than those described.
The compounds of formula may be used to control pests such 20 as arthropods e.g. insect and acarine pests, and helminths, i.e. nematodes. Thus, the present invention provides a method for the control of arthropods and/or helminths which comprises administering to the arthropod and/or helminth or to their environment an arthropodically effective amount of a compound of the formula The present invention also provides a method for the control and/or eradication of arthropod and/or helminth infestations of animals (including humans) and/or of plants,(including trees) and/or stored products which comprises administering to the animal or locus an effective 30 amount of a compound of the formula The present invention further provides for the compounds of the formula for use in human and veterinary medicine, in public health control and in agriculture for the control of arthropod and/or a. helminth pests.
The compounds of formula are of particular value in the protection of field, forage, plantation, glasshouse, orchard and vineyard crops, of ornamentals and of plantation and forest trees, for example, cereals (such as maize, wheat, rice, sorghum), cotton, tobacco, vegetables and salads (such as beans, cole crops, curcurbits, lettuce, onions, tomatoes and peppers), field crops (such as potato, sugar beet, ground nuts, soyabean, oil seed rape), sugar cane, grassland and forage (such as maize, sorghum, lucerne), plantations (such as of tea, coffee, cocoa, banana, oil palm, coconut, rubber, spices), orchards and groves (such as of stone and pip fruit, citrus, kiwifruit, avocado, mango, olives and walnuts), vineyards, ornamental plants, flowers and shrubs under glass and in gardens and parks, forest trees (both deciduous and evergreen) in forests, plantations and nurseries.
They are also valuable in the protection of timber (standing, felled, converted, stored or structural) from attack by sawflies Urocerus) or beetles scolytids, platypodids, lyctids, bostrychids, cerambycids, anobiids).
They have applications in the protection of stored products such as grains, fruits, nuts, spices and tobacco, whether whole, milled or compounded into products, from moth, beetle and mite attack. Also protected are stored animal products such as skins, hair, wool and feathers in natural or converted form as carpets or textiles) from moth and beetle attack; also stored meat and fish from beetle, mite and fly attack.
The compounds of general formula are of particular value in the control of arthropods or helminths which are injurious 30 to, or spread or act as vectors of diseases in man and domestic animals, for example those hereinbefore mentioned, and more especially in the control of ticks, mites, lice, fleas, midges and biting, nuisance and myiasis flies.
The compounds of Formula ms. be used for such purposes by application of the compounds themselves or in diluted form in known fashion as a dip, spray, fog, lacquer, foam, dust, powder, aqueous suspension, paste, gel, cream, shampoo, grease, combustible solid, vapourising mat, combustible coil, bait, dietary supplement, wettable powder, granule, aerosol, emulsifiable concentrate, oil suspensions, oil solutions, pressure-pack, impregnated article, pour on formulation or other standard formulations well known to those skilled in the art. Dip concentrates are not applied per se, but diluted with water and the animals immersed in a dipping bath containing the dip wash. Sprays may be applied by hand or by means of a spray race or arch. The animal, soil, plant or surface being treated may be saturated with the spray by means of high volume application or superficially coated with the spray by means of light or ultra low volume application.
Aqueous suspensions may be applied in the same manner as sprays or dips. Dusts may be distributed by means of a powder applicator or, in the case of animals, incorporated in perforated bags attached to trees or rubbing bars. Pastes, shampoos and greases may be applied manually or distributed over the surface of an inert material, such as that against which animals rub and transfer the material to their skins.
Pour-on formulations are dispensed as a unit of liquid of small volume on to the backs of animals such that all or most of the liquid is retained on the animals.
4 The compounds of Formula may be prepared either as formulations ready for use on the animals, plants or surface or as formulations requiring dilution prior to application, but both types of formulation comprise a compound of Formula in intimate admixture with one or mo.,'e carriers or diluents. The carriers may be liquid, solid or gaseous or 30 comprise mixtures of such substances, and the compound of Formula may be present in a concentration of from 0.025 to 99% w/v depending upon whether the formulation requires further dilution.
4 Dusts, powders and granules and other solid formulations comprise the compound of Formula in intimate admixture with a powdered solid inert carrier for example suitable clays, kaolin, bentonite, attapulgite, adsorbent carbon black, talc, mica, chalk, gypsum, tricalcium phosphate, powdered cork, magnesium siliate, vegetable carriers, starch and diatomaceous earths. Such solid formulations are generally prepared by impregnating the solid diluents with solutions of the compound of formula in volatile solvents, evaporating the solvents and, if desired grinding the products so as to obtain powders and, if desired, granulating, compacting or encapsulating the products.
Sprays of a compound of Formula may comprise a solution in an organic solvent those listed below) or an emulsion in water (dip wash or spray wash) prepared in the field from an emulsifiable concentrate (otherwise known as a water miscible oil) which may also be used for dipping purposes. The concentrate preferably comprises a mixture of the active ingredient, with or without an organic solvent and one or more emulsifiers. Solvents may be present within wide limits but preferably in an amount of from 0 to 90% w/v of the composition and may be selected from kerosene, ketones, alcohols, xylene, aromatic naphtha, and other solvents known in the formulating art. The concentration of emulsifiers may be varied within wide limits but is preferably in the range of 5 to 25% w/v and the emulsifiers are conveniently non-ionic a .o'e surface active agents including polyoxyalkylene esters of alkyl phenols and polyoxyethylene derivatives of hexitol anhydrides and anionic surface active agents including Na lauryl sulphate, fatty alcohol ether sulphates, Na and Ca salts of alkyl aryl sulphonates and alkyl sulphosuccinates.
Cationic emulsifiers include benzalkonium chloride and 30 quaternary ammonium ethosuphates.
e Amphoteric emulsifiers include carboxymethylated oleic imidazoline and alkyl dimnethyl betain.
a Vaporising mats normally comprise cotton and cellulose mix compressed into a board of approximately 35 x 22 x 3mm dimensions, treated with up to 0.3ml of concentrate comprising the active ingredient in an organic solvent and optionally an antioxidant, dye and perfume. The insecticide is vaporised using a heat source such as an electrically operated mat heater.
Combustible solids normally comprise of wood powder and binder mixed with the active ingredient and formed into shaped (usually coiled) strips. Dye and fungicide may also be added.
Wettable powders comprise an inert solid carrier, one or more surface active agents, and optionally stabilisers and/or antioxidants.
Emulsifiable concentrates comprise emulsifying agents, and often an organic solvent, such ,s kerosene, ketones, alcohols, xylenes, aromatic naphtha, and other solvents known in the art.
Wettable powders and emulsifiable concentrates will normally contain from 5 to 95% by weight of the active ingredient, and are diluted, for example with water, before use.
Lacquers comprise a solution of the active ingredient in an organic solvent, together with a resin, and optionally a plasticiser.
6* S 25 Dip washes may be prepared not only from emulsifiable concentrates but also from wettable powders, soap based dips and aqueous suspensions comprising a compound of Formula (I) in intimate admixture with a dispersing agent and one or more surface active agents.
S Aqueous suspensions of a compound of Formula may comprise a suspension in water together with suspending, stabilizing or ,6.e other agents. The suspensions or solutions may be applied per se or in a diluted form in known fashion.
Greases (or ointments) may be prepared from vegetable oils, synthetic esters of fatty acids or wool fat together with an inert base such as soft paraffin. A compound of Formula (I) is preferably distributed uniformly through the mixture in solution or suspension. Greases may also be made from emulsifiable concentrates by diluting them with an ointment base.
Pastes and shampoos are also semi-solid preparations in which a compound of Formula may be present as an uniform dispersion in a suitable base such as soft or liquid paraffin or m~ade on a non-greasy basis with glycerine mucilage or a suitable soap. As greases, shampoos and pastes are usually applied without further dilution they should contain the appropriate percentage of the compound of Formula required for treatment.
Aerosol sprays may be prepared as a simple solution of the active ingredient in the aerosol propellant and co-colvent such as halogenated alkanes and the solvents referred to above, respectively. Pour-on formulations may be made as a solution or suspension of a compound of Formula in a liquid medium. An avian or mammal host may also be protected against infestation of acarine ectoparasites by means of carrying a suitably-mouldedi shaped plastics article impregnated with a compound of Formula Such articles include impregnated collars, tags, bands, sheets and strips suitably attached to appropriate parts of the body. Suitably the plastics material is a polyvinyl chloride (PVC).
The concentration of the compound of Formula to be applied to an animal, premises or outdoor areas will vary according to 30 the compound chosen, the interval between treatments, the nature of the formulation and the likely infestation, but in general 0.001 to 20.0% w/v and preferably 0.03. to 10t of the **too: compound should be present in the applied formulation. The amount of the compound deposited on an animal will vary according to the method of application, size of the animal, co'ncentration of the compound in the applied formulati on, factor by which the formulation is diluted and the nature of the formulatio, kut in general will lie in the range of from 0.0001% to 0.5% w/w except for undiluted formulations such as pour-on formulations which in general will be deposited at a concentration in the range from 0.1 to 20.0% and preferably 0.1 to 10%. The amount of compound to be applied to stored products in general will lie in the range of from 0.1 to Space sprays may be applied to give an average initial concentration of 0.001 to Img of compound of formula per cubic metre of treated space.
The compounds of formula are also of use in the protection and treatment of plant species, in which case an effective insecticidal, acaricidal or nematocidal amount of the active ingredient is applied. The application rate will vary according to the compound chosen, the nature of the formulation, the mode of application, the plant species, the planting density and likely infestation and other like factors but in general, a suitable uss rate for agricultural crops is in the range 0.001 to 3kg/Ha and preferably between 0.01 and Ikg/Ha. Typical formulations for agricultural use contain between 0.0001% and 50% of a compound of formula and conveniently between 0.1 and 15% by weight of a compound of the formula U. 6o0 U U Dusts, greases, pastes and aerosol formulations are usually 25 applied in a random fashion as described above and concentrations of 0.001 to 20% w/v of a compound of Formula in the applied formulation may be used.
6• S~ The compounds of formula have been found to have activity S 30 against the common housefly (Musca domestica). In addition, *certain compounds of formula have activity against other arthropod pests including Myzus persicae, Tetranychus urtlcae, Plutella xylostella, Culex spp. Tribolium castaneum, 0.- Sitophilus granarius, Periplaneta amaircana and Blattolla germanica. The compounds of formula are thus useful in the control of arthropods e.g. insects and acarines in any environment where these constitute pests, e.g. in agriculture, in animal husbandry, in public health control and in domestic situations.
Insect pasts include members of the orders Coleaptera (e.g.
Anobium, Ceutorhynchus, Rhynchophorus Cosmopolites, Lissorhoptrus, Meligethes, Hypothenemus, Hylesinus, Acalymma, Lema, Psylliodes, Leptinotarsa, Gonocephalum, Agriotes, Dermolepida, Heteronychus, Phaedon, Triholium, Sitophilus, Diabrotica, Anthonomus or Anthrenus spp.), Lepidoptera (e.g, Ephestia, MaMestra, Earias, Pectinophora, Ostrinia, Trichoplusia, Pieris, Layhygma, Agrotis, Amathes, Wiseana, Tryporysa, Diatraea, Sporganothis, Cydia, Archips, Plutella, Chilo, Heliothis, Spodoptera or Tineojla spp.), Diptera (e.g.
Musca, Aedes, Anopheles, Culex, Glossina, Simnulium, Stomoxys, Haematobia, Tabanust Hydrotaea, Lucilia, Chrysomia, Callitroga, Dermatobia, Gasterophilus, Hypoderma, Hylemyia, Atherigona, Chiorops, Phytomyza, Ceratitis, Liriomyza and Melophagi.- spp.), Phthiraptera (Malophaga e.g. Damalina spp.
and Anoplura e.g. Linognathus and Pimematopinus spp.), Hemiptera Aphis, Betisia,Phorodon, Aeneolamia, Empoasca, Parkinslella, Pyrilla, Aonidiallat Coccus, Pseudococus, 'Helopeltis, Lygus, Dysdercus, Oxycarenus, Hezara, Aleurodes, Triatoma, Psylla, Mysus, Megoura, Phyll~oxera, Adelyes, Niloparvata, Nephrotetix or cimax spp.), Orthoptera (e.g.
Locusta, Gryllus, Schistocerca or Acheta spp.)t Dictyoptera 25 Blattella, Periplaneta or Blatta spp.), Hymenoptera Athalia, Cephus, Atta, Solenopsis or Monomorium spp.), Isoptera Odontotermos and Reticuliteormes spp.), Siphonaptera Ctenocaphalides or Pulex spp.), Thysanura 44 Lepisma app.), Dermaptera Forficula spp.), ee*: 30 Pecoptera Peripsocus spp.) and Thysanoptera Thrips 0 6: tabaci),.
Acarine pests include ticks, e.g. memibers of the genera Boophilustornithodorus, nlipicephalus, Amblyomma, Hyalommat Ixodest Haemaphysalis, Dercmacentor and Anoccantor, and mites and mangos such as Acarus, Tatranychus# Psoroptes, Notocadned, Sarcoptao, Psorargates, Chorioptes, Eutrombicula, DemodeX, Panonychus, Bryobiat Eriophyes, !laniulus, Polyphagotarsonemus, Scutigere.la, and Oniscus spp.
Nematodes which attack plants and trees of importance to agriculture, forestry, horticulture either directly or by spreading bacterial, viral, mycoplasma or, fungal diseases of the plants, include root-knot nematodes such as Meloidogyne app. M. incognita); cyst nematodes such as Globodera app. G. rostochiensis); Heterodera spp. hydrogen.
avenae); Radopholus app. R. similis); lesion nematodes such as Pratylenchus app. P. pratensis); Belonolaimus app. B. gracilis); Tylenchulus app. To semipenetrans); Rotylenchulus app. reniformis); fotylenchus app. R. robustue); Helicotylenchus app.
hydrogen. multicinctus) ;Hemicypliophora app. (e.g.
hydrogen. gracilis); Criconemoides spp. C. aimilis); Trichodorus app. T primitivus); dagger nematodes such as Xiphinema spp. (0e.g. X. diversicaudatum), Longidorus spp (e.g.
L. elongatus); Hoplolaimus app. hydrogen. coronatus); *toe V'See Aphelenchoides app. A. ritzema-bosi, A. besseyi); stem 20 and bulb eelworms such as Ditylenchus app. Do dipsaci).
Compounds of the invention may be combined with one or more other pesticidally active ingredients (for example pyrethroids, carbamates and organophosphates) and/or with *a 25 attractants, repellents, bacteriocides, fungicides, nematocides, anthelmintics and the like. Furthermore, it has been found that the activity of the compounds of the invention may be enhanced by the addition of a synergist or potentiator, for example: one of the oxiclase inhibitor class of synergists, such as piperonyl butoxide or propyl 2-propynylphonylphosphonate; a second compound of the invention; or a pyrethroid pesticidal compound. When an oxidas6 inhibitor synergist is present in a formula of the invention, the ratio of syntrgist to compound of Formula will be in the range 25:1-1:25 eg about 10:1.
stabilisers for preventing any chemical degradation which may occur with the compounds of the invention include# for example, antioxidants (such as tocopherols, butylhydroxyanisole and butylhydroxytoluene) and scavengers (such as epichlorhydrin) and organic or inorganic bases e.g. trialkylamines such as triethylamine which can act as basic stabilises and as scavengers.
Industrial Applicability Compounds of the present invention show activity as pesticides.
The following examples illustrate, in a non-limiting manner, preferred aspects of the invention.
S. 15 Formulations :0469, 4 1. Emulsifiable Concentrate e.
Compound of formula 10.00 Alkyl phenol ethoxylate* 7.50 Alkyl aryl sulphonato* 2.50
C
8 13 aromatic solvent 80.00 25 100.00 4 2. Emulsifiable Concentrate Compound of formula 10.00 Alkyl phenol ethoxylat* 2.50 Alkyl aryl sulphonato* 2.50 Ketonic solvent 64.00 CSa13 aromatic solvent 18.00 Antioxidant 3.00 100.00 3. Wettable Powder Compound of formula 5.00
C
8 -1 3 aromatic solvent 7.00
C
18 aromatic solvent 28,,00 China clay io. 00 Alkyl aryl sulphonate* 1.00 Napthalene sulphonic acid* 3.00 Diatomaceous earth 46.00 100.00 4. Dust Compound of formula 0.50 Talc 99.50 100.00 Bait Compound of formula :.:Sugar 79.5 ::Paraffin wax 20.0 100.00 6. Emulsion concentrate compound of frua()5.00
C
8 13 aromatic solvent 32.00 Cetyl alcohol 3.*00 Polyoxyethylene glycerol monooleate* 0.75 Polyoxyathylente sorbitan esters* 0.25 silicone solution 0.1 Water 58.9 100.00 24 7. suspension concentrate Compound of formula 10.00 Alkyl aryl ethoxylate* 3.*00 silicone solution 0.1 Alkane diol Fumed silica 0.50 Xanthan gum 0.20 Water 80.0 Buffering agent 1.2 100.00 8. microemulsion compound of formula 10.00 ae Polyoxyethylene glycerol monooleate* 10.00 Alkane diol 4.00 Se ,Water 76.00 100.00 9. Wter Dispersible Granules 25Compound of formula 70.00 Polyvinyl pyrrolidine 2.50 Alkyl aryl ethoxylate 1:25 *Alkyl aryl suiphonate 12 China clay 25.00 100.00 Granules <,'mpound of formula 2.00 Alkcyl phenol ethoxylate* 5.*00 Alkyl aryl sulphonate* 3.*00
C
8 -1 3 aromatic solvent 20.00 Yieselguhr granules 70.00 100.00 11. Aerosol (pressure pack) Compound of formula 0.3 Piperonyl butoxide
C
8 13 saturated hydrocarbon solvent 58.2 Butane 40.0 100. 00 12. Aerosol (pressure pack) *,Compound offormula 0.3 8 1 saturatqd hydrocarboni solvent 10.0 .8.13 Sorbitan monooleatz* 25 Water 40.0 Butane 48.7 "goo:100.00 13. Aerosol (pressure pack) compound of formula 1.00
CO
2 3.*00 Polyoxyethylehe glycerol monooleate* 1.40 3S Propanone 38.00 Water 56.60 100.00 14. Lacquer Compound of formula (I) Resin Antioxidant High aromatic whit;e spirit Spray (ready to use,) Compound of formula (1) Antioxidant Odourless kerosene 16. Potentiated Spray (ready to use) 1).50 5.00 0.50 92 0 100. 00 4
S
S. *S S S
S
S
S. 55 5
S
55 *5 S S S. S .5 5*
S.
S
S
S
55 S S Se 0.*10 0.10 99.8 100.00 compound of formula (I) Piperonyl butoxide An~tioxidant 0doa.rless kerosene 0.10 0.50 0.10 99.30 100.00 17. Microenoapsulated Compound of formula (I)
C
8 13 aromatic solvent 10.0 10.0 Aromatic di-isocvanate# Alkyl phenol ethoxylate* Alkyl diamine# Diethylene triamine Concentrated hydrochloric acid 2.2 Xanthan gum 0.2 Fumed silica Water 64.6 100.00 Surfactant react to form the polyurea walls of the microcapsule Antioxidant could be any of the following individually or 15 combined Butylated hydroxytoluene Butylated hydroxyanisole Vitamin C (ascrobic acid) The following Examples illustrate, in a non-limiting manner, preferred aspects of the invention.
EXPERIMENTAL
25 General Synthetic Methods and Procedures:
S
Various compounds were synthesised and characterised in accordance with the following experimental procedures.
S
1H N.m.r. spectra were obtained on a Bruker AM-250 spectrometer in deuterochloroform solutions with tetramethylsilane as internal standard and are expressed as ppm from TMS, number of protons, number of peaks, coupling constant J Hz.
Progress of reactions could also be conveniently monitored on Aluminium sheets (40 x 80 mm) precoated with 0.25 mm layers of silica gel with fluorescent indicator and developed in appropriate solvent or solvent mixture. Temperatures are in degrees Celsiuo iroughout.
Conventional work up was peiformed as follows: The reaction mixture was partitioned between an organic solvent and water. The phases were separated and the organic phase washed with at least an equivalent volume of dilute aqueous base as appropriate, and then with a saturated brine wash. The organic phase was then dried over a drying agent, suitably magnesium sulphate, and filtered. The volatile solvents were removed and the resulting product subjected to the appropriate purification and used in the next stage of synthesis or analysed as the final product.
15 The aldehyde, cinnamic acid and amine starting materials were obtained from Aldrich, BDH, Fluorochem, Fluka or Lancaster Synthesis with the exception of the following whose
S
preparation is described below.
S o.
Example 1 (-)-(2E,4E)-N-(2-Methylprop-2-enyl)-5-[(iR,IS)-c-2-(3,4dibromo-phenyl)-r-l-fluorocyclopropyl] 3-methylpenta-2,4dieneamide 25 (Compound 1).
(+/-)-c-2-(3,4-Dibromophenyl)-r-l-fluorocyclopropylmethanel (llg) and (+)-(R)-a-methylbenzylisocyanate (5g) were stirred at 80'C for 60 hours under nitrogen. The resulting crude product was subjected to chromatography on silica followed by fractional crystalisation to give [(R,2R)-c-2-(3,4-dibromophenyl)-r-l-fluorocyclopropylmethyl]-(aR)-a-methylbenzyl carbamate (2.0g, m.pt. 94.3'C) and [(lS,2S)-c-l-fluoro-r-2- (3,4-dibromophenyl)cyclopropylmethyl]-(aR)-a-m-ethylbenzyl carbamate (3.0g, m.pt. 118.6'C) in addition to 6.25g of the mixture. Absolute stereochemistries were confirmed by X-ray.
((1S,2S)-c-2-(3,4-Dibromophenyl)-r-l-fluorocyclopropylmethyl]- (aR)-a-methylbenzyl carbamate (3.7g) was added to a solution of sodium ethoxide (ex Aldrich) (0.11g) in ethanol under nitrogen and the mixture was heated to 70'C for 30 minutes.
The mixture was cooled and concentrated in vacuo.
chromatography on silica gave (-)-(1S,2S)-c-2-(3,4-dibromophenyl) -r-l-fluorocyclopropylmethanoI (2.42g, m.pt.
82'C, CaD] c. 1.00 (Et0H)).
Oxalyl chloride (ex Aldrich) (0.72ml) was dissolved in~ dichloromethane (l0mi) and cooled to -70'C under nitrogen. Dimethyl sulphoxide (l.17m1) (ex BDH) in dichloromethane (Imi) was added dropwise. After 5 minutes the above alcohol (2.42g) in dichloromethane (5m1) was added and the suspension stirred at for thirty minutes. Triethylamine (ex Aldrich) (5.2m1) was added and the mixture allowed to warm to 0*C over one Ihour, Work up in the conventional manner gave 2- 4-dibromophenyl) -r-l-fluorocyclopro)pylmnethanal 4g, (aD) -69.7' (c 1.00, EtOH)).
A solution of lithium diisopropylamiie in dry tetrahydrofuran prepared from n-butyl lithium (ex Aldrich) (4.7m1) and diiso- :propylamine (ex Aldrich) (1.lml) was treated at -60'C with triethyl 3-methylphosphono-crotonate (l.97g) in tetrahydrofura,l under nitrogen. After 2 hours at -60'C the above 0: 25 aldehyde (2.4g) was added. After 18 hours at 25*C the mixture was partitioned between ether and water and the ethereal fraction wo~rked up as above. Purification by chromatogra~phy on silica (ether/hexane) gave (lR,2S)c-2- 4-dibromo-phenyl) -r-l-fluorocycl-opropyl) -3-methylper'ta-2,4-dienoate, (2.82q, 2E:2Z 3:2. (aJD -136' 1.00, ItOH)).
To~ the above ester (2.76g) in ethanol (1O0mi) was added a solution of potassium hydroxide (ex Boll) (1.25g) in water (25ml). After 18 hours at room temperature the solution was concentrated in vacuo. The carboxylic acid salt residue was dis~\olved in a small ammount of waiter and acidified with concentrated hydrochlorio acid. Ether extraction, drying over magnesium sulphate and concentration in vacuo gave (2E/Z,4E)-5-E(lIS,2R)-c-2-(3,4-dibromophenyl)-r-.-fluorocyclopropyl]-3-methyl penta-2,4-dienoic acid (2.45g, [aJD -155' (c.
1.00f EtCH).
To a stirred suspension of the above acid (2.4g) in dichioromethane (6Oml) under nitrogen at 0'C was added oxalyl chloride (0.63m1) followed by one drop of dimethylformamide. After 2 hours at room temperature the solvent was removed in vacuo.
The residue was suspended in ether (60ml) and cooled to O*C, triethylamine (I.Oml) and 2-methyl prop-2-enylamine (0.65m1.
ex Aldrich) were added nd the mixture stirred for 18 hours at room temperature. Water was added and the mixture was worked up in a conventional manner. Chromatography on silica (ether/hexane) gave the title compound (0.6Gg, m.pt. 125*C, (aJD -171' 1.00, EtCH)).
*:fe Also isolated was -(2E/Z,4E) -N-(2-Methylprop-2-enyl) Nl(12S) -c-2-(3,4-dibromophenyl) -r-l-fluorocycJlopropylj-3mothylpenta-214-dienamide, (Compound 2) 2E:4E 3:2.
(ID -132' 1.00, EtCH)).
Using the same experimental methods, [(1IR,2R -c-2-(3,4-dibro- *~**mophenyl) -r-l-fl'iorocyclopropylmethyl]-(aR) -a--methylbenzyl carbamate was converted into 4E) (2-Methylprop-2enyl) -5-c (1S,2R)-c-(3 ,4-dibronophenyl)-r-l-fluorocyclopropyl]- 3-methylpenta-2,4-dienamide, (Compound 3) (0.11g, (aD) +170* (c 1.00 EtCH)) and 4ethylprop-2-enyl)-5- -c-2-(3,4-dibromophenyl) -r-fluorocyclopropyl)-3methylpenta-2,4-dieneamide, (Compound 4) (0.78g, 2E:2Z 5:4. ta]D +131' (c 1.00 EtCH)).
Example 2 (+)-(2El4E)-N-Isobuty1-5-(S,2R)-c-2-(3,4-dich.orophenyl)-rchloro-cyclopropyl.)-3-methiylpenta-2 ,4-dienamide, (Compound 4-Dichlo2?ophcnyl) -r-i-chlorocyclopropylmethanol in dichioromethane (160ml) under nitrogen at -20'C was treated successively with triethylamine (5.3m1) and lo-Camphorsuiphonyl chloride (8.78g, ex Aldrich). After 18 hours at -5'C the mixture was poured into water and worked up in a conventional manner to give ((1S,2S)-(-)-c-2-(3.4-dichlorophenyl) -r-l-chlorocyclopropylmethylj sulphonate (4.8g, M~D -ll.3* 1.00, CHC13)) and IUlR,2R)- 4-dichlorophenyl) -r-l-chlorocyclopropylmethyl3-(1- S)-l0-camphor suiphonate CaD] +11.3' 1.00, CHCl3)).
Also isolated were 2.7g of the diastereoisomeric mixture.
Absolute stereochemisties were determined by X-ray crystallography.
To a stirred sueponsion of (lR,2R) -c-2-(3,4-dichlorophenyl) -r-1-chlorocyclopropylmethyl) -l0-camphorsulpho- *nate (2.66g) in 2-methoxyethanol (5m1) (ex Aldrich) was added sodium acetate (2g) (ex Aldrich) and the mixture heated to ref lux for 7 hours. The mixture was cooled, diluted with water and extracted with ether. conventional work up and 2chromatography (slia ether/hexane) gave 4-dichlorophenyl) -r-l-cyclopropylmethanol as a colourless c. 1.00 (EtOH)).
Oxalyl chloride (0.l9ml) was dissolved in dichloromethane (3ml) and cooled to -70'0 under nitrogen. Dimethyl suiphoxide (O.31m1) in Dichloromethane (lml) was added dropwise. After minutes the above alcohol (0.5g) in dichloromethane (lml) was added and the suspension stirred at -70'C for thirty minutes.
Triethylamine (1.38m1) was added and the mixture allowed to warm to V'C over one hour. work up in the conventional marnner gave 2RS) -c-2-(3,4-dichlorophenyl) -r-1-chlorocyclopropylmethanal (0.49g).
A solution of lithium diisopropylamide in dry tetrahydrofuran prepared from n-buty. lithium (l.24m1) and dilsopropylamine (O.28m1) was treated at -60 C with triethyl 3-methylphosphonocrotonate (0.52g) in tetrahydrofuran under nitrogen. After 2 hours at -60*C the above aldehyde (0.49g) was added* After 18 hours at 25*C the mixture was partitioned between ether and water and the ethereal fraction worked up as above.
Purification by chromatography on silica (ether/hexane) gave (12R)-c-2-(3,4-dichlorophenyl)-r-lchlorocyclopropyl]-3-methylpenta-2,4-dienoate, (0.7g, 2E:2Z, 7:3).
To the above ester (0.7g) in ethanol (10ml) was added a solution of potassium hydroxide (0.38g) in water After 18 hours at room temperature the solution was concentrated in vacuo. The carboxylic acid salt residue was dissolved in a small ammwtunt of water anid acidified with concentrated hydrochloric acid. Ether extraction, drying over magnesium sulphate and concentration in vacuo gave (2E/Z,4E) (12S)-c-2-(3 ,4-dichlorophenyl) -r-l-chlorocyclopropylJ-3-methylpenta-2,4-dienoic acid.
To the above acid (0.58g) in dichloromethane (5m1) at under nitrogen was added triethylamine (0.49m1), N-phenylphosphoramidochloridate (ex Aldrich) (0.47g) and isobutylamine (ex Aldrich, 0.17m1) successively. After 18 hours at room temperature, the mixture was subjected to a conventional work up to give, after chromatography (silica, ether/hexane), the title compound (0.23g, z.pt. 114'Co (caD +164' 1.00, EtOH)).
B Iy a procedure identical to that described above, N-Isobutyvl-s-t((IR,2S) 4-dichlovlophenyl) -r-1-chlorocyclopropyl) -3-methylpenta-2 ,4-dieneamide, (Compound 6) was 4e: 30 prepared from (-)-U1S,12S)-c-2-(3,4-dichlorophenyl)-r-1-chlorocycloptopylmethyl3- -10-camphor sulphonate 3g, m.pt.
Using the same experimental methods, the following compounds we're prepared from (-)-(2E/z,4E)-5-C((R,2S)-c-2-(3,4-dichlorophenyl) -r-l-chlorocyclopropyl) -3-methylpenta-2 ,4-dienoic acid 'using -sec-butylamine and -sec-butylamine (ex Aldrich) in place of isobutylamine.
(-)-(2E,4E)-N-(S-.l-Methylpropyl)-5-[(1R,2S)-c-2-(3,4-dichlorophony.) -r-1-chlorocyclopropyl)-3-methylpenta-2, 4-dierieamide, (Compound 7).
(0.146g, (a]D -141' (c 1.00, EtOH)).
phenyl) -r-1-chlorocyclopropyl] -3-methylpenta-2 ,4-dieneamide, (Compound 8).
(0.119g, Ecx]D -186' (c 1.00, EtOH-)).
Example 3 cyclopropyl) -3--methylpenta-2, 4-dieneamideI (Coimpound 9).
The title compound was prepared by a procedure analogous to that used in EP 369 762, example 12, compound 56. 3,4-Di~bromobenzaJ,dehyde and triethyl 3-methylphosphonocrotonate were used in place of 314-dibromobenzaldehyde and triethyl phosphonocrotonate (0,324g, (aJD -188* (c 0.99, EtOll)).
(+)-(2E,4E)-N-Isobutyl-5-[( (1,2S)-trans-2-(3,4-dibromophenyl)- *e 0 cyclopropyl) -3--methylpenta-2, 4-dieneamide (Compound 10), was 4.
"66:00 prepared in an analogous fashion using D-(-)-diisopropyltartrate in place of L-(+)-diisopropyl- tartrate (0.23g, (a)D +154' (c 0.94, EtOH)).
N1MR bata sell* 30 Compound 1. 7.58(2Hpm), 7.04(1Hfdd), G.38(1Hjd), 5.84(1H,dd), S.73(111,s), 5.59(itiom), 4.82(2H~s), 3*90(2H~d), I.SS(1Htm).
2. 7485 6.39(1Hod), 7.58(211,M)t 7.08(lHjdd), 6.11& 5.83(1Hjdd)t S.77 5.63(lHd), 5.60(lH,m), 4.88(2H,G.), 3.89(2H,M), 2.30 2.O0(31{,d), 2.25(1H,m), 1.70(1H,mn), 1.76(3H,s), 1.55(1H,m).
3. 7.58(211,m), 5.73(1H,s), 2.31(3H-Id), 1. 55 111, 7.05(lfl,dd), 6.39(1H,d), 5.86(1H,dd), 5.58(lH,*n) 4.85(2H,s) 3.90(2Hd), 2.28(lHom), 1.78(1H,M), 1.76(3H1fs), 4. 7.85 6.39(1H,d), 7.58(2H,m), 7.08(1Uildd), 6.11 *too a. a.
so a 11 5.83 (1H,dd) 3.89 (2fl,m), 1.76(3H,S)t 7.40(111,d), 5.92(1H,d), 2.48 (lf,dd) 6. 7.40(1Hld), 5.92 (1H,d), 2.48 (1H,dd) 7. 7.40(1Hod), 5.92(1H,d), 2. 47 1, dd) 1.3.3(3Hod), 8. 7.40(1H,d)t 92 (111,c) 5.77 5.68(1H,d), 5.60(1H,M), 4.88(2H,s)f 2.30 2.00(3H,d), 2.25(JJ-1,M), 1.70(1Hl,m), 1.55(1HIM).
7.09(1Hdclc), 6.43(1Hlod), 5.77(1fl,S)l 5.S5(11H1m), 3.14(2111t), 2.30(311,d), 1.77(3HrIm), 0.93(6Hod).
7.32(IH,d), 7.09(1H,dd), 6.43(I-,cl), a. a a a a.
a.
aa a a. a a.
4 a.
a a a a 4.aa..
a a a. a a 4a a a.
7631(il1,d)o 5. 70 (11, s) I2. 29 (311,d 0. 92 (311, t).
5.70(llH,8), 7.08(IH,cld), 6.41(1U,d), 5 a 26 (Idbroad), 4.00(H,mf), 1.72(211,M), 1.42(211,m) 7.08(1Utdd), 6.41(lHtcI), 5.
26 (lHgdbroad), 4.00(1H,mi), 1.72(2H,m)# 1.42(2110m) 2.47 (11t, dc) 1 2.29 (3H1,d) 1.13(311,d), 0.92(3111t).
9. 7.49(1H~d), 2. 23 (311,b),I O.91(6H,d)o 7.33 (1H,l), 5.63 (111dd) 1. 95S (III Ila) I 6.88(1H,dd), 6.15(1I,d)l S5.61 (111,8 3 .12 (211, t), 7.49(1Htd), 7.33(1H,d), S-61(11119), 3.12(21,t.)o 2.23(3H,s), 1.95(1H,m), 1.75(2H,m), 1.26(2H,m).
0.91(6H,d).
BIOLOGICAL DATA The following examples illustrate, in a non-limiting manner, the pesticidal activity of compounds of formula EXAMPLE A SPRAY TESTS The activity of compounds of the invention were tested by dissolving the compounds in acetone and than diluting in water: "Synperonic" to give a water emulsion.
The solution was then used to treat the following insects, for which activity was observed at the following spray rates i Spodoptera littoralis 9 Uninfested leaves were sprayed with the test solution 20 containing the compound and loft to dry. Those were then infested with 10 newly hatched larvae. Mortality was assessed after 3 days.
The following compounds were active at 250 ppm or less 3, 4, 6, 5, 9, 10, 7 and 8.
*o The following compounds were active at 50 ppm or less *0 30 1, 2.
EXAMPLE B-TOPICAL APPLICATION TESTS Blattella germanica 33 0.511 of a solution of the compound in butanone (with or without piperonyl butoxide) was topically applied to male B.germanica. Mortality was assessed after 6 days.
The following compounds were active at 10~g or less piperonyl butoxide): 6, 7, 8, 9 and Topical application to housefly (Musca domestica) The compounds were administered topically to female IMusca domestica, in butanone solution, either alone or in conjunction with a synergist (6Ag piperonyl butoxide). The flies were kept with sugar water and the mortality were assessod after 48 hours.
The following compounds were active at I~g or less 6Ag piperony. butoxide) 3, 4, 7 and 8.
The following compounds were active at 0.2pg or less (+6Ag piperonyl butoxide): 1, 2, 6, 9 and

Claims (5)

10.- A novel chemical intermediate of the formula Q 2 CR2=CR 3 -CR 4 =CR 5 -(=O)ZI Q 2 COR2 or Q 2 -CHOH. I11.- An insecticidal or acaricidal composition comprising a 0 t 20 compound of formula as defined in claim 1 in admixture with a carrier or diluent. *2 A yncgled pestiel of formula as defined in claim 1, a synergist for t 25 formula (II) compound and a carrier or diluent.
13.- A mixture of a compound of formula (II s defined in claim 1 and another pesticidal compound
14.- A method for the control o ests comprising application to the pest infestation of pesticidally effective amount of a compound according to aim 1. A method ording to claim 13 wherein the environment is an animal. l A method according to claim 13 cherein the environment is -41 12. A synergized pesticidal composition comprising a compound of formula as defined in claim 1, a synergist for the formula compound and a carrier or diluent. 13. A mixture of a compound of formula as defined in claim 1 and another pesticidal compounds. 14. A method for the control of pests comprising application to the pest infestation of a pesticidally effective amount of a compound according to claim 1. A method according to claim 14 wherein the environment is an animal.
16. A method according to claim 14 wherein the environment is a plant or tree.
17. A method according to claim 14 wherein the environment is stored products. DATED this 31st day of October 1994. ROUSSEL-UCLAF By their Patent Attorneys, CALLINAN LAWRIE 6 .0 3J1tM4GV686&SPKl!. ABSTRACT The present invention discloses pesticidally activity compounds of formula H R R 4 0 2 4 1 (I) QN x R R R X 3 5 1 *oo or a salt thereof, wherein Q is a monocyclic aromatic ring, or fused bicyclic ring system of which at least one ring is aromatic containing 9 or 10 aroms of which one may be nitrogen and the rest carbon each ring system being optionally substituted or Q is a dihalovinyl group or a group R 6 -C-C- where R 6 is C 1 4 alkyl, tri C, alkylsilyl, halogen or hydrogen, R, R 3 R 4 and R, are the same or different with at least one being hydrogen and the otheRs being idependently selected form hydrogen, halo, C, alkyl of haloalkyl; and is selected from hydrogen and C, hydrocarbyl optionally substituted by dioxalanyl, halo, cyano, trifluoromethyl, trifluoromethylthio or alkoxy and X, is hydrogen, fluoro or chloro.
AU30316/92A 1991-12-23 1992-12-21 Pesticides Ceased AU656047B2 (en)

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FR2729945B1 (en) * 1995-01-26 1997-04-25 Hoechst Schering Agrevo Sa NOVEL AROMATIC AMIDES, THEIR PREPARATION PROCESS, THE COMPOSITIONS CONTAINING THEM AND THEIR USE AS PESTICIDES
FR2751644A1 (en) * 1996-07-26 1998-01-30 Hoechst Schering Agrevo Sa Aromatic amide(s) with insecticidal and acaricidal activity

Citations (2)

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US4950666A (en) * 1989-03-30 1990-08-21 Fmc Corporation Difluoroalkane and difluoroalkenylalkane pesticides
US5202356A (en) * 1988-11-16 1993-04-13 The Wellcome Foundation Limited Pesticidal cyclopropyl-2,4-dieneamides

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GB8826760D0 (en) * 1988-11-16 1988-12-21 Wellcome Found Pesticides

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202356A (en) * 1988-11-16 1993-04-13 The Wellcome Foundation Limited Pesticidal cyclopropyl-2,4-dieneamides
US4950666A (en) * 1989-03-30 1990-08-21 Fmc Corporation Difluoroalkane and difluoroalkenylalkane pesticides

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