GB750638A - Dehydrochlorination of dichloropropionic acid compounds - Google Patents

Dehydrochlorination of dichloropropionic acid compounds

Info

Publication number
GB750638A
GB750638A GB877/54A GB87754A GB750638A GB 750638 A GB750638 A GB 750638A GB 877/54 A GB877/54 A GB 877/54A GB 87754 A GB87754 A GB 87754A GB 750638 A GB750638 A GB 750638A
Authority
GB
United Kingdom
Prior art keywords
dichloropropionic
compounds
chloroacrylic
acids
iodides
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
GB877/54A
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 Chemicals Corp
Original Assignee
General Aniline and Film 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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Publication of GB750638A publication Critical patent/GB750638A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/62—Halogen-containing esters
    • C07C69/65—Halogen-containing esters of unsaturated acids
    • C07C69/653—Acrylic acid esters; Methacrylic acid esters; Haloacrylic acid esters; Halomethacrylic acid esters

Abstract

The dehydrochlorination of dichloropropionic acids, their esters, amides and nitriles with alkaline agents in presence of water to give a -chloroacrylic compounds is improved by the addition of catalytic amounts of water-soluble iodides. In examples the yield of a -chloroacrylic methyl ester by the alkaline dehydro-chlorination of a ,b -dichloropropionic methyl ester in presence of sodium hydroxide and various auxiliary acids in presence of added sodium iodide is shown to be greatly increased. Other iodides specified include magnesium and alkaline earth iodides. Other compounds which may be similarly dehydrohalogenated to the corresponding a -chloroacrylic compounds, include esters of many alcohols, mono- and poly-hydric, with a ,b -dichloropropionic, a ,a -dichloropropionic and mixtures of these acids, nitriles, amides and N-substituted amides. Polymerization inhibitors are preferably included. Specifications 621,219, 618,965 and 704,029 are referred to.
GB877/54A 1953-01-21 1954-01-12 Dehydrochlorination of dichloropropionic acid compounds Expired GB750638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US750638XA 1953-01-21 1953-01-21

Publications (1)

Publication Number Publication Date
GB750638A true GB750638A (en) 1956-06-20

Family

ID=22123308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB877/54A Expired GB750638A (en) 1953-01-21 1954-01-12 Dehydrochlorination of dichloropropionic acid compounds

Country Status (2)

Country Link
DE (1) DE1017607B (en)
GB (1) GB750638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109928862A (en) * 2018-12-28 2019-06-25 瑞孚信江苏药业股份有限公司 A kind of novel processing step of ɑ-chlorovinyl trimethylene

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE650455A (en) * 1963-07-12

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE555933C (en) * 1929-07-24 1932-08-04 Roehm & Haas Akt Ges Process for the production of acrylic acid esters
DE575423C (en) * 1931-01-17 1933-04-27 Roehm & Haas Akt Ges Process for the production of acrylic acid
GB550854A (en) * 1941-07-25 1943-01-27 Alexander Miller Roberts Improvements in or relating to the manufacture of esters of chlorine containing organic acids
DE855553C (en) * 1941-12-02 1952-11-13 Basf Ag Process for the production of ª ‡, ª ‰ -Dichloroacrylic acid esters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109928862A (en) * 2018-12-28 2019-06-25 瑞孚信江苏药业股份有限公司 A kind of novel processing step of ɑ-chlorovinyl trimethylene
CN109928862B (en) * 2018-12-28 2021-10-26 瑞孚信江苏药业股份有限公司 Novel preparation method of alpha-vinylchloride cyclopropane

Also Published As

Publication number Publication date
DE1017607B (en) 1957-10-17

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