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:
Jul. 13, 1976
Filed:
Aug. 06, 1974
Sumitomo Chemical Company, Limited, Osaka, JA;
Abstract
A process for preparing an organic acid ester of the formula (I), ##EQU1## wherein R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a methyl group, a vinyl group, a 2,2-dichlorovinyl group, a 1-propenyl group, a 2-methyl-1-propenyl group, a 2-carbomethoxy-1-propenyl group, a 2-methoxymethyl-1-propenyl group, a 1,3-butadienyl group, a 2-methyl-1,3-butadienyl group or a cyclopentylidenemethyl group when R.sub.1 is a hydrogen atom, and R.sub.2 is a methyl group when R.sub.1 is a methyl group; which comprises reacting an acid of the formula (II), ##EQU2## wherein R.sub.1 and R.sub.2 are each as defined above, or its reactive derivative, or mixture of the acid and its reactive derivative with a quaternary ammonium salt of the formula (III), ##SPC1## wherein X is a halogen atom, A is an alkylamine, pyridine or an N-alkylaniline.