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:
Apr. 25, 1989
Filed:
Jan. 07, 1988
Marie-Odile Moingeon, Villabe, FR;
Jacques Chaussard, Paris, FR;
Michel Troupel, Maincy, FR;
Christophe Saboureau, Brie Comte Robert, FR;
Abstract
The invention relates to a process for the electrosynthesis of carboxylic acids of general formula R-COOH in which R is an organic radical by the electrochemical reduction, in the presence of carbon dioxide, of organic compounds corresponding to the general formula R--Y in which R is the above-mentioned organic radical and Y is a hetero atom-containing radical, the hetero atom of the radical Y, chosen from the group consisting of oxygen, nitrogen, sulphur andphosphorus, being directly linked to a carbon atom of the radical R by a single covalent linkage. When the hetero atom is nitrogen or phosphorus, the radical Y is an ammonium or phosphonium radical respectively. The anode, which is consumed during the electrosynthesis, is made of a metal chosen from the group consisting of reducing metals and their alloys, preferably made of magnesium, aluminium or zinc. This process without catalyst is very simple to perform and enables a cell with a single compartment to be employed. The carboxylic acids are commonly employed in the chemical industry, especially as intermediates for the synthesis of pharmaceutical products or of products used in plant protection.