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. 02, 2021
Filed:
Jun. 15, 2018
Applicant:
Rhodia Operations, Paris, FR;
Inventors:
Olivier Back, Lyons, FR;
Philippe Marion, Vernaison, FR;
Assignee:
RHODIA OPERATIONS, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/48 (2006.01); C07C 51/00 (2006.01); C07C 49/76 (2006.01); C07C 51/265 (2006.01); C07C 51/38 (2006.01);
U.S. Cl.
CPC ...
C07C 45/48 (2013.01); C07C 49/76 (2013.01); C07C 51/265 (2013.01); C07C 51/38 (2013.01);
Abstract
The present invention pertains to a process for the cross-ketonization (Piria reaction) between an aryl carboxylic acid and an aliphatic carboxylic acid using a metal-based compound and a slight or a moderate excess of aryl carboxylic acid. A good selectivity, up to 99 mol %, can be achieved. The aryl aliphatic ketone can be used for the preparation of surfactants and other downstream products.