The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 1983
Filed:
May. 18, 1981
Applicant:
Inventor:
Errol J McGarry, Eltham North, AU;
Assignee:
ICI Australia Limited, Melbourne, AU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560205 ;
Abstract
The invention concerns a process for the preparation of .gamma.-unsaturated carboxylic acid methyl esters by reacting an allyl alcohol with an excess of trimethyl orthoacetate in the presence of an acidic catalyst. The process involves: the slow addition of the allyl alcohol to trimethyl orthoacetate heated to a temperature at or near its boiling point; removal of portion of the trimethyl orthoacetate from the reaction mixture by distillation; and heating the remaining reaction mixture at a temperature of 130.degree. to 160.degree. C. to complete the reaction.