ATE77T1 - N,N'-DIALKYL-UREIDOMETHANE-DIPHOSPHONIC ACID, THEIR PREPARATION AND USE. - Google Patents

N,N'-DIALKYL-UREIDOMETHANE-DIPHOSPHONIC ACID, THEIR PREPARATION AND USE.

Info

Publication number
ATE77T1
ATE77T1 AT79103229T AT79103229T ATE77T1 AT E77 T1 ATE77 T1 AT E77T1 AT 79103229 T AT79103229 T AT 79103229T AT 79103229 T AT79103229 T AT 79103229T AT E77 T1 ATE77 T1 AT E77T1
Authority
AT
Austria
Prior art keywords
preparation
ureidomethane
dialkyl
diphosphonic acid
novel
Prior art date
Application number
AT79103229T
Other languages
German (de)
Inventor
Friedrich Dr. Krueger
Walter Michel
Original Assignee
Joh. A. Benckiser Gmbh
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 Joh. A. Benckiser Gmbh filed Critical Joh. A. Benckiser Gmbh
Application granted granted Critical
Publication of ATE77T1 publication Critical patent/ATE77T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3839—Polyphosphonic acids
    • C07F9/3873—Polyphosphonic acids containing nitrogen substituent, e.g. N.....H or N-hydrocarbon group which can be substituted by halogen or nitro(so), N.....O, N.....S, N.....C(=X)- (X =O, S), N.....N, N...C(=X)...N (X =O, S)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
    • C07F9/6509—Six-membered rings
    • C07F9/6512—Six-membered rings having the nitrogen atoms in positions 1 and 3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)

Abstract

Novel N,N'-dialkylureidomethane diphosphonic acids and their alkaline salts having the formula: <IMAGE> wherein R1 and R2 represent separate alkyl groups having 1 to 3 carbons or a ring forming alkylene group and R is hydrogen or an alkali metal; a novel method for their preparation comprising reacting formic acid with a corresponding N,N'-dialkylurea and phosphorus trichloride and the use of such compounds to prevent the formation of calcareous deposits in water systems.
AT79103229T 1978-09-02 1979-08-31 N,N'-DIALKYL-UREIDOMETHANE-DIPHOSPHONIC ACID, THEIR PREPARATION AND USE. ATE77T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782838437 DE2838437A1 (en) 1978-09-02 1978-09-02 N, N'-DIALKYL-UREIDOMETHANE DIPHOSPHONIC ACID, THEIR PRODUCTION AND USE
EP79103229A EP0010147B1 (en) 1978-09-02 1979-08-31 N,n'-dialkyl-ureidomethane-diphosphonic acid, its preparation and use

Publications (1)

Publication Number Publication Date
ATE77T1 true ATE77T1 (en) 1981-06-15

Family

ID=6048596

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79103229T ATE77T1 (en) 1978-09-02 1979-08-31 N,N'-DIALKYL-UREIDOMETHANE-DIPHOSPHONIC ACID, THEIR PREPARATION AND USE.

Country Status (4)

Country Link
US (1) US4255572A (en)
EP (1) EP0010147B1 (en)
AT (1) ATE77T1 (en)
DE (2) DE2838437A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8915815D0 (en) * 1989-07-11 1989-08-31 Warwick Int Ltd Scale inhibition
EP0600371B1 (en) * 1992-12-02 1999-02-03 Hoechst Aktiengesellschaft Guanidinyl alkyl-1,1- bis phosphonic acid derivatives, process for their preparation and use

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763281A (en) * 1970-06-26 1973-10-02 Stauffer Chemical Co Ureidoalkylphosphonates
DE2104476C2 (en) * 1971-02-01 1983-12-01 Henkel KGaA, 4000 Düsseldorf Process for preventing precipitation in water or aqueous solutions
HU166283B (en) * 1971-12-08 1975-02-28
DE2254095C3 (en) 1972-11-04 1975-05-15 Joh. A. Benckiser Gmbh, 6700 Ludwigshafen 1-ureido-alkane-1,1-diphosphonic acids, their production and use
DE2260719A1 (en) * 1972-12-12 1974-06-20 Basf Ag Amido methyl phosphonic esters prepn - from amido methyl halide and trialkyl phosphite used for flame retardants and inters for dyestuffs and plant protectives
US4003965A (en) * 1973-08-06 1977-01-18 Monsanto Company Phosphorus compounds
US3989727A (en) * 1973-08-06 1976-11-02 Monsanto Company Urea-phosphorus compounds
DE2446749C3 (en) 1974-10-01 1979-02-08 Benckiser-Knapsack Gmbh, 6802 Ladenburg Process for the preparation of 1-ureal and carbamoyloxy-alkane-1,1-diphosphonic acids
DE2603702C3 (en) * 1976-01-31 1981-04-30 Joh. A. Benckiser Gmbh, 6700 Ludwigshafen Process for the preparation of N-acyl-N-alkylaminomethanediphosphonic acid
ES456541A1 (en) * 1976-06-09 1978-02-16 Benckiser Knapsack Gmbh N-phosphono methylene amino alkane phosphonic acid compounds, process of producing same, and method and compositions of using same
US4163733A (en) * 1977-10-25 1979-08-07 Buckman Laboratories, Inc. Synergistic compositions for corrosion and scale control
DE2745084A1 (en) 1977-10-07 1979-04-12 Henkel Kgaa 5-Keto-piperazine-2,2-di:phosphonic acid derivs. - useful as chelating agents e.g. in water treatment, for providing trace elements and treating metabolic disorders

Also Published As

Publication number Publication date
US4255572A (en) 1981-03-10
EP0010147B1 (en) 1981-06-10
DE2838437A1 (en) 1980-03-20
DE2960403D1 (en) 1981-09-17
EP0010147A1 (en) 1980-04-30

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee
REN Ceased due to non-payment of the annual fee