JPS61243082A - 2-piperazinopyrimidine derivative - Google Patents

2-piperazinopyrimidine derivative

Info

Publication number
JPS61243082A
JPS61243082A JP8445585A JP8445585A JPS61243082A JP S61243082 A JPS61243082 A JP S61243082A JP 8445585 A JP8445585 A JP 8445585A JP 8445585 A JP8445585 A JP 8445585A JP S61243082 A JPS61243082 A JP S61243082A
Authority
JP
Japan
Prior art keywords
compound
formula
group
lower alkyl
substituted lower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8445585A
Other languages
Japanese (ja)
Other versions
JPH0635460B2 (en
Inventor
Keiichi Yokoyama
恵一 横山
Hiroyasu Ono
裕康 大野
Sukishige Katou
加藤 穂慈
Takumi Kitahara
北原 巧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP60084455A priority Critical patent/JPH0635460B2/en
Publication of JPS61243082A publication Critical patent/JPS61243082A/en
Publication of JPH0635460B2 publication Critical patent/JPH0635460B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:The compound of formula I [R<1> is H or aralkyl; R<2> is alkyl, cycloalkyl, OH-substituted lower alkyl, lower alkoxy-substituted lower alkyl, di(lower alkyl)amino-substituted lower alkyl or aralkyl]. EXAMPLE:2-( 4-Benzylpiperazino )-6-cyclohexyl-5-oxo-5, 6-dihydro(7H)pyrrolo[3, 4-d]pyrimidine. USE:Herbicide for paddy field and plowed land. Effective to the paddy field weeds such as barnyard grass, umbrella plant, monochoria, etc., and the plowed land weeds such as Deccan grass, large crab-grass, green amaranth, etc. PREPARATION:The compound of formula I wherein R<1> is benzyl is produced by reacting the compound of formula II with the compound of formula III (in the case of R<1> is benzyl) in a solvent, and reacting the resultant compound of formula IV with the amine of formula R<2>NH2 in a solvent. The obtained compound can be converted to another compound of formula I wherein R<2> is H by the hydrocracking in the presence of a hydrogenation catalyst supplying H2 in a solvent under normal pressure -10kg/cm<2>.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は除草剤として有用な新規2−ピペラジノピリミ
ジン誘導体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to novel 2-piperazinopyrimidine derivatives useful as herbicides.

〔従来の技術〕[Conventional technology]

窒素やカルボニルを含む環がピリミジン環と縮合したも
の1例えばピリドピリミジン構造を有する化合物として
はケミカルアプストラクツ(Chem、 Abstr、
) 90巻54893(19791,同97巻1823
50(1982)に記載されているものが知られている
。しかし1本願化合物とは構造上にも大きな差異が見ら
れるうえ、これら公知化合物の農業用途に対する有用性
についても全く明らかにされていない。
Compounds in which a ring containing nitrogen or carbonyl is fused with a pyrimidine ring 1 For example, compounds having a pyridopyrimidine structure include Chemical Abstr.
) Volume 90 54893 (19791, Volume 97 1823
50 (1982) is known. However, there is a large difference in structure from the compound of the present application, and the usefulness of these known compounds for agricultural purposes has not been clarified at all.

〔発明の概要〕[Summary of the invention]

本発明は、一般式CI) 〔式中、R1は水素又はアラルキル基であり R2はア
ルキル基、シクロアルキル基、水酸基置換低級アルキル
基、低級アルコキシ基置換低級アルキル基、ジ低級アル
キルアミノ基置換低級アルキル基又はアラルキル基であ
るう〕で表わされる2−ピペラジノピリミジン誘導体に
関するものである。
The present invention is based on the general formula CI) [wherein R1 is hydrogen or an aralkyl group, and R2 is an alkyl group, a cycloalkyl group, a hydroxyl-substituted lower alkyl group, a lower alkoxy group-substituted lower alkyl group, a di-lower alkylamino group-substituted lower The present invention relates to a 2-piperazinopyrimidine derivative represented by (c) which is an alkyl group or an aralkyl group.

〔本願物質〕[Claim substance]

本願物質は一般式(I)で表わされるものであり。 The substance of the present application is represented by general formula (I).

式中のR1のアルキル基としては、ベンジル基、ジフェ
ニルメチル基、)IJフェニルメチル基ナトヲ挙げるこ
とができ、とりわけベンジル基であることが好ましい。
Examples of the alkyl group for R1 in the formula include a benzyl group, a diphenylmethyl group, and a phenylmethyl group, with a benzyl group being particularly preferred.

またR2のアルキル基としては炭素数5以上のものであ
り1例えばn−アミル基などのアミル基類、n−ヘキシ
ル基などのヘキシル基類、n−ヘプチル基などのヘプチ
ル基類、n−オクチル基などのオクチル基類などを話げ
ることができ、とくにn−ヘプチル基であることが好ま
しい。R2のシクロアルキル基としては例えば炭素数4
ないし7のもの、とくに炭素数6のシクロヘキシル基で
あることが好ましい。R2の水酸基置換低級アルキル基
としては、例えばメチロール基、エチロール基を挙げる
ことができ、中でも後者であることが好ましく、R2の
低級アルコキシ基置換低級アルキル基としては、炭素数
1ないし8のもので、例えばメトキシメチル基、エトキ
シメチル基、メトキシエチル基、エトキシエチル基など
を挙げることができ、中でもメトキシエチル基であるこ
とが好ましく。
The alkyl group for R2 has 5 or more carbon atoms, such as amyl groups such as n-amyl group, hexyl groups such as n-hexyl group, heptyl groups such as n-heptyl group, n-octyl group, etc. It can include octyl groups such as groups, and n-heptyl groups are particularly preferred. For example, the cycloalkyl group for R2 has 4 carbon atoms.
A cyclohexyl group having 6 to 7 carbon atoms, particularly a cyclohexyl group having 6 carbon atoms, is preferable. Examples of the lower alkyl group substituted with a hydroxyl group for R2 include a methylol group and an ethylol group, of which the latter is preferable, and the lower alkyl group substituted with a lower alkoxy group for R2 is one having 1 to 8 carbon atoms. , for example, methoxymethyl group, ethoxymethyl group, methoxyethyl group, ethoxyethyl group, etc. Among them, methoxyethyl group is preferable.

R2のジ低級アルキルアミノ基置換低級アルキル基とし
ては1例えば2−ジメチルアミノエチル基。
The lower alkyl group substituted with di-lower alkylamino group for R2 is 1, for example, 2-dimethylaminoethyl group.

2−ジエチルアミノエチル基などを挙げることができ、
中でも前者であることが好ましり、R2のアラルキル基
としてはR1で例示したもののほか、2−フェニルエチ
ル基を挙げることができ、中でもベニジル基% 2−フ
ェニルエチル基でアルこトカ好ましいっ また本願物質は遊離の状態であっても塩の形、例えば酸
付加塩の形になっていてもよい。このような塩について
も同様に除革剤として用いることができる。酸付加塩と
しては、塩酸、硫酸、リン酸の如き鉱酸、酢酸、マレイ
ン酸、クエン酸の如き有機酸を例示することができる。
Examples include 2-diethylaminoethyl group,
Of these, the former is preferred, and in addition to those exemplified for R1, examples of the aralkyl group for R2 include a 2-phenylethyl group, among which a benidyl group is preferred. The substance of the present application may be in the free state or in the form of a salt, for example an acid addition salt. Such salts can also be used as leather removing agents. Examples of acid addition salts include mineral acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, and organic acids such as acetic acid, maleic acid, and citric acid.

以下1本願物質のうち、とくに好ましいものを例示する
Among the substances of the present application, particularly preferred ones are illustrated below.

〔製造方法〕〔Production method〕

一般式(I)で表わされる本願物質は1次の反応式に従
い製造することができる。R1がベンジル基である場合
を例にとって説明する。
The substance of the present application represented by general formula (I) can be produced according to the first-order reaction formula. An example in which R1 is a benzyl group will be explained.

■               ■ ■ 化合物■は例えば後述する参考例により合成することが
できる。化合物■と■を、水、メタノール、エタノール
、THF、DMFなどの反応溶媒中、 0ないし100
℃で0.5ないし10時間反応させる。化合物■は化合
物■に 82に相当する基を有するアミン■を反応させ
ることにより5合成することができる。化合物■は水、
アルコール類。
■ ■ ■ Compound (2) can be synthesized, for example, according to Reference Examples described below. Compounds ■ and ■ in a reaction solvent such as water, methanol, ethanol, THF, DMF, etc. from 0 to 100
React at 0.5 to 10 hours. Compound (5) can be synthesized by reacting compound (1) with amine (2) having a group corresponding to 82. Compound ■ is water,
Alcohol.

THF、DMF、)ルエン、キシレンなどの反応溶媒中
、0ないし150℃で0.5ないし20時間原料化合物
を反応させることにより得ることができる。
It can be obtained by reacting raw material compounds at 0 to 150° C. for 0.5 to 20 hours in a reaction solvent such as THF, DMF, ) toluene, or xylene.

さらにR1が水素である化合物は、化合物■に相当する
化合物を、水素化分解することにより得ることができる
。水素化分解触媒としては、 Pd−C。
Further, a compound in which R1 is hydrogen can be obtained by hydrogenolyzing a compound corresponding to compound (2). As a hydrogenolysis catalyst, Pd-C is used.

ラネーNi 、  Pt−C、PdOなどを用いる。反
応溶媒はメタノール、エタノール、インプロパツールな
どのアルコール、ギ酸、酢酸、プロピオン酸などのカル
ボン酸、エタノール−ギ酸、エタノール−酢酸などの混
合溶媒などを用い、常圧ないし10kl?/cJで水素
を供給し、10ないし100℃で0.1・ないし10時
間反応させる。反応後は常法により目的化合物を得るこ
とができる。
Raney Ni, Pt-C, PdO, etc. are used. As the reaction solvent, alcohols such as methanol, ethanol, and impropatul, carboxylic acids such as formic acid, acetic acid, and propionic acid, and mixed solvents such as ethanol-formic acid and ethanol-acetic acid are used, and the reaction is carried out at normal pressure to 10 kl? Hydrogen is supplied at a rate of /cJ and the reaction is carried out at 10 to 100°C for 0.1 to 10 hours. After the reaction, the target compound can be obtained by a conventional method.

〔有用性〕〔Usefulness〕

本願物質は除草剤として優れた活性を有する。 The substance of the present application has excellent activity as a herbicide.

すなわち1本願物質は水田用および畑地除草剤として使
用することができる。除草剤対象の雑草としては、タイ
ヌビエ、タマガヤツリ、コナギ、ホタルイ、ヘラオモダ
カなどの水田雑草、ヒエ、メヒシバ、オオイヌタデ、ア
オビユ、コゴメカヤツ1ハシロザなどの畑地雑草に対し
てとくに有効である。
That is, the substance of the present application can be used as a herbicide for paddy fields and upland fields. The herbicide target weeds are particularly effective against paddy field weeds such as Japanese grasshopper, Japanese cypress, Japanese grasshopper, Japanese fireweed, and Japanese grasshopper, as well as upland weeds such as Japanese barnyard grass, Japanese knotweed, Japanese knotweed, Japanese grasshopper, and Japanese grasshopper.

本願物質を除草剤として用いるには1本願物質のみまた
はこれと担体、界面活性剤1分散剤、補助剤などを配合
して、水利剤、乳剤、微粒剤または粒剤等に製剤し、適
当な濃度に希釈して散布するか又は直接施用する。
To use the claimed substance as a herbicide, the claimed substance alone or in combination with a carrier, a surfactant, a dispersant, an adjuvant, etc., is formulated into an aquarium, an emulsion, a fine granule, or a granule. Spray at a diluted concentration or apply directly.

以下、実施例等により本願発明を具体的に説明する。Hereinafter, the present invention will be specifically explained with reference to examples and the like.

〔実施例等〕[Examples, etc.]

1−アミジノ−4−ベンジルピペラジン硫酸塩9.7&
 (36,4mmol )とTHF 185mIO懸濁
液に。
1-amidino-4-benzylpiperazine sulfate 9.7&
(36,4 mmol) in THF 185 mIO suspension.

NaOH1,5,!iTをR2015m1に溶かした液
を加えて中和する。
NaOH1,5,! Neutralize by adding a solution of iT in R2015ml.

ソノ後% 4−クロロ−2−エトキシメチレン−アセト
酢酸エチル8.!i+(36,4皿01)をTHF20
0mlに溶かした液を20℃で滴下し1滴下終了後1時
間同温度で撹拌する。撹拌終了後エーテル3QQmlを
加え、水洗を3回行い、有機層を無水MgSO4で乾燥
したのち溶媒を減圧下に留去し、淡黄色の目的物をii
、s、p得た。(収率86.7%)’H−NMRスペク
トル(CDCIJI媒、δppm )1.37(3H,
t、 J=7Hz)、2.51 (4H,t。
% after sono 4-chloro-2-ethoxymethylene-ethyl acetoacetate 8. ! i+ (36, 4 dishes 01) in THF20
Add the solution dissolved in 0ml dropwise at 20°C, and stir at the same temperature for 1 hour after adding one drop. After stirring, 3QQml of ether was added, washed with water three times, and the organic layer was dried over anhydrous MgSO4, and the solvent was distilled off under reduced pressure to remove the pale yellow target product.
,s,p obtained. (Yield 86.7%)'H-NMR spectrum (CDCIJI medium, δppm) 1.37 (3H,
t, J=7Hz), 2.51 (4H, t.

J=6Hz)、3.75(2H,S)、3.97(4H
,t。
J = 6Hz), 3.75 (2H, S), 3.97 (4H
,t.

J=6Hz)、4.34(2H,q、 J=7Hz)、
 4.88(2H,S)%7.32(5H,’s)。
J=6Hz), 4.34(2H,q, J=7Hz),
4.88(2H,S)%7.32(5H,'s).

2−(4−ペンジルピペラジン)−4−りo。2-(4-penzylpiperazine)-4-rio.

メチルピリミジン−5−カルボン酸エチルエステル2.
0 & (5,34m mol)をインアミルアルコー
ル40mgに溶かし、シクロヘキシルアミン10.5g
(107mm01)を加え、6時間還流した。反応終了
後、溶媒を留去し、残渣をエーテルで洗浄することによ
り、標記化合物を結晶として1.32.9得た(収率6
3チ)。
Methylpyrimidine-5-carboxylic acid ethyl ester2.
0 & (5.34 mmol) in 40 mg of inamyl alcohol, 10.5 g of cyclohexylamine
(107 mm01) was added and refluxed for 6 hours. After the reaction was completed, the solvent was distilled off and the residue was washed with ether to obtain 1.32.9 of the title compound as crystals (yield: 6
3chi).

融点 176−178℃ 赤外吸収スペクトル(CHCI、溶液、cm’)312
0.2850,2800,1670,1610゜157
2.1350,1005゜ ’H−NMRスペクトル(CDC13溶液、δppm 
)1.20−2゜DO(10H)、2.52(4H,t
、 J=5Hz)、3.58(2H,s )、3.96
(4H,、t、J=5Hz)、4.18 C2H,s 
)、7.37 (5H,s )%8.69 (IH,S
 )。
Melting point 176-178℃ Infrared absorption spectrum (CHCI, solution, cm') 312
0.2850, 2800, 1670, 1610°157
2.1350,1005°'H-NMR spectrum (CDC13 solution, δppm
) 1.20-2°DO (10H), 2.52 (4H, t
, J=5Hz), 3.58 (2H,s), 3.96
(4H,, t, J=5Hz), 4.18 C2H,s
), 7.37 (5H,s)%8.69 (IH,S
).

同様の方法により表1の化合物を得た。The compounds shown in Table 1 were obtained in a similar manner.

実施例7  6−シクロヘキジルー5−オキソ−U 2−(4−ベンジルピペラジノ)−6−シクロヘキジル
ー5−オキソ−5,6−ジヒドロ(7H)ピロa(3,
4−d〕ピリミジン1.21 (3,07m mol。
Example 7 6-cyclohexyl-5-oxo-U 2-(4-benzylpiperazino)-6-cyclohexyl-5-oxo-5,6-dihydro(7H)pyro a(3,
4-d] pyrimidine 1.21 (3,07 mmol.

実施例1)をエタノール3Qm/に溶かし、10チPd
−CO,161!を加え、60℃で加水素分解した。
Example 1) was dissolved in 3Qm/ethanol and 10% Pd
-CO,161! was added and hydrolyzed at 60°C.

反応終了後、Pd−Cを一過し、エタノールを留去する
ことにより、標記化合物0.92gを結晶として得た(
収率〜100%)。
After the reaction was completed, Pd-C was passed through and ethanol was distilled off to obtain 0.92 g of the title compound as crystals (
yield ~100%).

融点 177−180℃ 赤外吸収スペクトル(CHCI、溶液、(m’)333
0.2920.2850.1670.1610゜157
0.1345,978゜ 1H−NMRxペク)ル(CD(1,溶液、δppm 
>1.20−2.00(10H)、2.94(4H,t
、J=5f(z)、  3.92(4H9t、 J=5
Hz)、4.t9(2H,s)、8.69(IH,s)
Melting point 177-180℃ Infrared absorption spectrum (CHCI, solution, (m') 333
0.2920.2850.1670.1610°157
0.1345,978° 1H-NMRx Pecl (CD (1, solution, δppm
>1.20-2.00 (10H), 2.94 (4H, t
, J=5f(z), 3.92(4H9t, J=5
Hz), 4. t9 (2H, s), 8.69 (IH, s)
.

同様の方法により表2の化合物を得た。The compounds shown in Table 2 were obtained in a similar manner.

Claims (1)

【特許請求の範囲】 一般式〔 I 〕 ▲数式、化学式、表等があります▼〔 I 〕 〔式中、R^1は水素又はアラルキル基であり、R^2
はアルキル基、シクロアルキル基、水酸基置換低級アル
キル基、低級アルコキシ基置換低級アルキル基、ジ低級
アルキルアミノ基置換低級アルキル基又はアラルキル基
である。〕で表わされる2−ピペラジノピリミジン誘導
体。
[Claims] General formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼[I] [In the formula, R^1 is hydrogen or an aralkyl group, and R^2
is an alkyl group, a cycloalkyl group, a hydroxyl-substituted lower alkyl group, a lower alkoxy-substituted lower alkyl group, a di-lower alkylamino group-substituted lower alkyl group, or an aralkyl group. ] A 2-piperazinopyrimidine derivative represented by:
JP60084455A 1985-04-22 1985-04-22 2-Piperazinopyrimidine derivative Expired - Lifetime JPH0635460B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60084455A JPH0635460B2 (en) 1985-04-22 1985-04-22 2-Piperazinopyrimidine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60084455A JPH0635460B2 (en) 1985-04-22 1985-04-22 2-Piperazinopyrimidine derivative

Publications (2)

Publication Number Publication Date
JPS61243082A true JPS61243082A (en) 1986-10-29
JPH0635460B2 JPH0635460B2 (en) 1994-05-11

Family

ID=13831093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60084455A Expired - Lifetime JPH0635460B2 (en) 1985-04-22 1985-04-22 2-Piperazinopyrimidine derivative

Country Status (1)

Country Link
JP (1) JPH0635460B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125180A1 (en) * 2005-05-19 2006-11-23 Xenon Pharmaceuticals Inc. Piperazine derivatives and their uses as therapeutic agents

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522703A (en) * 1991-04-05 1993-01-29 Mitsubishi Electric Corp Device for correcting characteristic

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522703A (en) * 1991-04-05 1993-01-29 Mitsubishi Electric Corp Device for correcting characteristic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125180A1 (en) * 2005-05-19 2006-11-23 Xenon Pharmaceuticals Inc. Piperazine derivatives and their uses as therapeutic agents

Also Published As

Publication number Publication date
JPH0635460B2 (en) 1994-05-11

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