FR2374329A1 - PROCESS FOR PREPARING A HALOGENALKYLPHOSPHONIC ACID - Google Patents

PROCESS FOR PREPARING A HALOGENALKYLPHOSPHONIC ACID

Info

Publication number
FR2374329A1
FR2374329A1 FR7733655A FR7733655A FR2374329A1 FR 2374329 A1 FR2374329 A1 FR 2374329A1 FR 7733655 A FR7733655 A FR 7733655A FR 7733655 A FR7733655 A FR 7733655A FR 2374329 A1 FR2374329 A1 FR 2374329A1
Authority
FR
France
Prior art keywords
acid
reaction
haloalkylphosphonic
halogenalkylphosphonic
preparing
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.)
Withdrawn
Application number
FR7733655A
Other languages
French (fr)
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.)
GAF Corp
Original Assignee
GAF Corp
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 GAF Corp filed Critical GAF Corp
Publication of FR2374329A1 publication Critical patent/FR2374329A1/en
Withdrawn legal-status Critical Current

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
    • C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
    • 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)]
    • C07F9/40—Esters thereof
    • C07F9/4071—Esters thereof the ester moiety containing a substituent or a structure which is considered as characteristic
    • C07F9/4075—Esters with hydroxyalkyl compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne un procédé de préparation d'un acide halogénalkylphosphonique. On fait entrer un hydracide halogéné en contact avec un halogénalkylphosphonate en présence d'environ 0,1 à 1,8 mole d'eau par mole d'acide phosphonique, en maintenant cette concentration en eau pendant toute la durée de la réaction ; on ajoute progressivement à 110-160 degrés C une quantité suffisante d'hydracide, halogéné anhydre dans un autoclave contenant le mélange reactionnel pour maintenir une pression manométrique d'au moins 7 bars pendant au moins une grande partie de la réaction. Certains acides halogénalkylphosphoniques, notamment l'acide 2-chloréthylphosphonique, peuvent être utilisés comme substances influençant la croissance des végétaux.The invention relates to a process for the preparation of a haloalkylphosphonic acid. A halogenated hydracid is brought into contact with a haloalkylphosphonate in the presence of about 0.1 to 1.8 moles of water per mole of phosphonic acid, maintaining this water concentration throughout the reaction period; a sufficient quantity of anhydrous, halogenated hydracid is gradually added at 110-160 ° C. in an autoclave containing the reaction mixture to maintain a gauge pressure of at least 7 bar during at least a large part of the reaction. Certain haloalkylphosphonic acids, in particular 2-chlorethylphosphonic acid, can be used as substances influencing the growth of plants.

FR7733655A 1976-12-20 1977-11-08 PROCESS FOR PREPARING A HALOGENALKYLPHOSPHONIC ACID Withdrawn FR2374329A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75279676A 1976-12-20 1976-12-20

Publications (1)

Publication Number Publication Date
FR2374329A1 true FR2374329A1 (en) 1978-07-13

Family

ID=25027881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733655A Withdrawn FR2374329A1 (en) 1976-12-20 1977-11-08 PROCESS FOR PREPARING A HALOGENALKYLPHOSPHONIC ACID

Country Status (8)

Country Link
JP (1) JPS5377017A (en)
BE (1) BE860496A (en)
BR (1) BR7707294A (en)
CA (1) CA1085870A (en)
DE (1) DE2755278A1 (en)
FR (1) FR2374329A1 (en)
GB (1) GB1592265A (en)
IL (1) IL53081A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU190580B (en) * 1984-07-18 1986-09-29 Nitrokemia Ipartelepek,Hu Plant growth regulating compositions comprising phosphonic acid-esters as active substance
CN1074420C (en) * 1999-10-08 2001-11-07 常熟市农药厂 Preparation method of 70%-80% liquid 2-chloroethyl phosphonic acid
JP4514779B2 (en) 2007-09-28 2010-07-28 株式会社クレブ Cold protection gloves

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050245A1 (en) * 1969-10-17 1971-05-13 GAF Corp , New York, NY (V St A ) Process for the preparation of 2 halo-ethylphosphonic acids
FR2118579A5 (en) * 1970-12-15 1972-07-28 Hoechst Ag
FR2130314A1 (en) * 1971-03-26 1972-11-03 Gaf Corp
FR2159845A5 (en) * 1971-11-12 1973-06-22 Hoechst Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050245A1 (en) * 1969-10-17 1971-05-13 GAF Corp , New York, NY (V St A ) Process for the preparation of 2 halo-ethylphosphonic acids
FR2118579A5 (en) * 1970-12-15 1972-07-28 Hoechst Ag
FR2130314A1 (en) * 1971-03-26 1972-11-03 Gaf Corp
FR2159845A5 (en) * 1971-11-12 1973-06-22 Hoechst Ag

Also Published As

Publication number Publication date
BE860496A (en) 1978-05-05
DE2755278A1 (en) 1978-06-29
IL53081A0 (en) 1977-12-30
JPS5377017A (en) 1978-07-08
BR7707294A (en) 1978-08-01
CA1085870A (en) 1980-09-16
GB1592265A (en) 1981-07-01
IL53081A (en) 1981-05-20

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