GB624015A - Improvements in or relating to alkyl esters of alpha-beta unsaturated carboxylic acids and method of preparing same - Google Patents

Improvements in or relating to alkyl esters of alpha-beta unsaturated carboxylic acids and method of preparing same

Info

Publication number
GB624015A
GB624015A GB32479/46A GB3247946A GB624015A GB 624015 A GB624015 A GB 624015A GB 32479/46 A GB32479/46 A GB 32479/46A GB 3247946 A GB3247946 A GB 3247946A GB 624015 A GB624015 A GB 624015A
Authority
GB
United Kingdom
Prior art keywords
propiolactone
sulphate
lactones
carboxylic acids
alkyl esters
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
GB32479/46A
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.)
Goodrich Corp
Original Assignee
BF Goodrich 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 BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of GB624015A publication Critical patent/GB624015A/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
    • C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
    • C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
    • C07C69/54—Acrylic acid esters; Methacrylic acid esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alkyl esters of a -, b -unsaturated carboxylic acids are prepared by reacting a dialkyl sulphate with a b -lactone having at least one hydrogen atom connected to the a -carbon atom and which may carry other substituents. Preferably equimolecular proportions of reactants are used and the temperature is maintained below 30 DEG C. suitably between -30 DEG and 10 DEG C. The reaction may also take place under reflux in a solvent. b -Propiolactone is the preferred b -lactone, but lactones of the higher homologues may also be used. In examples, b -propiolactone is treated with dimethyl sulphate to give methyl acrylate and b -propiolactone is treated with ethyl sulphate to give ethyl acrylate. Corresponding derivatives are formed by replacing the above dialkyl sulphates with diisopropyl sulphate, dibutyl sulphate, diamyl sulphate or di-n-octyl sulphate. Specification 654,251 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of cycloalkyl, aryl and aralkyl substituted b -lactones; the b -lactones of unsaturated b -hydroxy carboxylic acids; mono- and di-lactones of dicarboxylic acids and lactones containing nitrogen, sulphur, oxygen or halogen atoms, e.g. a - or b -nitrophenyl b -propiolactone, b -(o-nitro-m-chlorophenyl)-b -propiolactone, b -(o-nitro-m-methoxyphenyl)-b -propiolactone, a -hydroxy-b -phenyl-b -propiolactone and a -chloro-b -propiolactone. This subject-matter does not appear in the Specification as accepted.
GB32479/46A 1945-11-28 1946-11-01 Improvements in or relating to alkyl esters of alpha-beta unsaturated carboxylic acids and method of preparing same Expired GB624015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US624015XA 1945-11-28 1945-11-28

Publications (1)

Publication Number Publication Date
GB624015A true GB624015A (en) 1949-05-26

Family

ID=22042239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32479/46A Expired GB624015A (en) 1945-11-28 1946-11-01 Improvements in or relating to alkyl esters of alpha-beta unsaturated carboxylic acids and method of preparing same

Country Status (1)

Country Link
GB (1) GB624015A (en)

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