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:
Sep. 10, 1985
Filed:
Nov. 07, 1984
Applicant:
Inventors:
Nobuo Ishikawa, Yokohama, JP;
Akio Takaoka, Kawasaki, JP;
Assignee:
Daikin Kogyo Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604654 ;
Abstract
A method for preparing lower alkyl .alpha.-fluoro-.alpha.-cyanoacetate and its carbanion by reacting hexafluoropropene with ammonia, and then reacting the obtained product with an alkali hydroxide in a lower alkyl alcohol. The carbanion is prepared by reacting the product .alpha.-fluoro-.alpha.-cyanoacetate with an alkali fluoride.