GB1356688A - Process for the manufacture of 2-chloroethane-phosphonic acid - Google Patents

Process for the manufacture of 2-chloroethane-phosphonic acid

Info

Publication number
GB1356688A
GB1356688A GB5746871A GB5746871A GB1356688A GB 1356688 A GB1356688 A GB 1356688A GB 5746871 A GB5746871 A GB 5746871A GB 5746871 A GB5746871 A GB 5746871A GB 1356688 A GB1356688 A GB 1356688A
Authority
GB
United Kingdom
Prior art keywords
reaction
dichloroethane
phosphonic acid
pressure
chloroethane
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.)
Expired
Application number
GB5746871A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1356688A publication Critical patent/GB1356688A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3808Acyclic saturated acids which can have further substituents on alkyl

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1356688 Preparing 2-chloroethane phosphonic acid FARBWERKE HOECHST AG 10 Dec 1971 [12 Nov 1971] 57468/71 Heading C2P 2-Chloroethane phosphonic acid is obtained by cleaving 2-chloroethane phosphonic acid bis- (2-chloroethyl) ester with gaseous HCl with the exclusion of water under an elevated pressure and at 100 to 200‹ C. The reaction is generally carried out in a closed autoclave at a pressure of 2 to 25 atmospheres gauge and the dichloroethane formed in the reaction is preferably removed continuously or discontinuously from the reaction zone during the reaction, e.g. by condensation with the aid of an enamelled pressure reflux condenser with connected receiver in a closed system, or by opening the system and continuously discharging the gaseous dichloroethane while maintaining an elevated reaction pressure by forcing in hydrogen chloride. Alternatively, if the dichloroethane is not distilled off the reaction mixture separates into two layers, the upepr layer comprising dichloroethane and the 2-chloroethane phosphonic acid being recovered from the lower layer which may first be distilled under reduced pressure to yield further small amounts of dichloroethane. Reference has been directed by the Comptroller to Specification 1,187,002.
GB5746871A 1971-11-12 1971-12-10 Process for the manufacture of 2-chloroethane-phosphonic acid Expired GB1356688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2156284A DE2156284C3 (en) 1971-11-12 1971-11-12 Production of 2-chloroethane phosphonic acid

Publications (1)

Publication Number Publication Date
GB1356688A true GB1356688A (en) 1974-06-12

Family

ID=5824947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5746871A Expired GB1356688A (en) 1971-11-12 1971-12-10 Process for the manufacture of 2-chloroethane-phosphonic acid

Country Status (14)

Country Link
JP (1) JPS5946960B2 (en)
AT (1) AT309465B (en)
BE (1) BE776736A (en)
CA (1) CA942766A (en)
CH (1) CH561224A5 (en)
CS (1) CS164917B2 (en)
DE (1) DE2156284C3 (en)
FR (1) FR2159845A5 (en)
GB (1) GB1356688A (en)
IL (1) IL38341A (en)
IT (1) IT943887B (en)
NL (1) NL7116982A (en)
RO (1) RO63331A (en)
SU (1) SU482948A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1085870A (en) * 1976-12-20 1980-09-16 Robert J. Kiesel Preparation of haloalylphosphonic acid
JPS6247576U (en) * 1985-09-10 1987-03-24

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787486A (en) * 1969-10-17 1974-01-22 Gaf Corp Preparation of haloethane phosphonic acids

Also Published As

Publication number Publication date
DE2156284B2 (en) 1979-12-06
RO63331A (en) 1978-08-15
AT309465B (en) 1973-08-27
IL38341A (en) 1974-06-30
SU482948A3 (en) 1975-08-30
CA942766A (en) 1974-02-26
BE776736A (en) 1972-06-15
CS164917B2 (en) 1975-11-28
CH561224A5 (en) 1975-04-30
NL7116982A (en) 1973-05-15
DE2156284A1 (en) 1973-05-17
DE2156284C3 (en) 1980-08-07
JPS4857929A (en) 1973-08-14
FR2159845A5 (en) 1973-06-22
IL38341A0 (en) 1972-02-29
JPS5946960B2 (en) 1984-11-15
IT943887B (en) 1973-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee