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:
Jun. 30, 2015
Filed:
Mar. 08, 2012
Applicant:
Olivier Buisine, Saint-Genis-Laval, FR;
Inventor:
Olivier Buisine, Saint-Genis-Laval, FR;
Assignee:
RHODIA OPERATIONS, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/14 (2006.01); C07C 51/08 (2006.01);
U.S. Cl.
CPC ...
C07C 253/14 (2013.01); C07C 51/08 (2013.01);
Abstract
The present invention relates to a method for preparing difluoracetonitrile and the derivatives thereof. The method for preparing difluoroacetonitrile according to the invention is characterized in that it includes reacting halogenodifluoromethane and a source of cyanide anions in an alkaline medium. The invention also relates to the use of difluoroacetonitrile as an intermediate in the manufacture of difluoroacetic acid and the salts, esters, or amide thereof.