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. 15, 1986
Filed:
Mar. 07, 1984
Applicant:
Inventors:
Nobuo Ishikawa, Yokohama, JP;
Takeshi Nakai, Yokohama, JP;
Assignee:
Daikin Kogyo Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 57 ; 560 60 ; 560183 ; 560184 ; 560174 ; 560227 ; 562586 ; 556470 ;
Abstract
An .alpha.-fluoroalkyl carboxylic acid ester of the general formula ##STR1## wherein A is R.sup.1 R.sup.2 COR.sup.3 -- or R.sup.4 CO--, wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, alkoxyl or phenyl, with or without the formation of a common ring therebetween, R.sup.3 is hydrogen or alkyl, R.sup.4 and R are independently alkyl, and R.sub.f is fluoroalkyl. The .alpha.-fluoroalkyl carboxylic acid ester is prepared by reacting a fluoroalkyl silyl ketene acetal of the formula ##STR2## wherein R' is alkyl and R.sub.f and R are the same as defined above, with the corresponding acetal, ketone or acyl halide.