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:
May. 07, 1991
Filed:
Apr. 18, 1990
Annie Conan, Bagneux, FR;
Esther D'Incan, Chatenay-Malabry, FR;
Jacques Perichon, Savigny-sur-Orge, FR;
Soline Sibille, Saint-Maur-des-Fosses, FR;
Abstract
The invention relates to a process for the electrosynthesis of a beta,gamma-unsaturated ester by electrolysis, in a cell having only a single compartment, of a mixture of an alpha,beta-unsaturated halide and an alpha-halogenated ester in the presence of an amount which is less than the stoichiometric amount for the reaction between the halide and the ester of a catalyst based on nickel complexed with a binitrogenous bidentate organic ligand. The anode, which is consumed by the electrochemical reaction of which it is the center, is made of a metal chosen from the group comprising the reducing metals and their alloys and is preferably made of zinc, aluminum or magnesium. This process, which is simple and economical, in particular permits the synthesis of arylacetates and arylpropionates, which are intermediates in the synthesis of pharmaceutical or plant protection products.