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. 11, 1992
Filed:
Jul. 11, 1990
Applicant:
Inventors:
Assignee:
Takasago International Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 41 ; 560 81 ; 560103 ; 560155 ; 560190 ; 560265 ; 562449 ; 562450 ; 562489 ; 562496 ; 562574 ; 562575 ; 562592 ; 562606 ;
Abstract
A process for producing a carboxylic acid or an ester thereof represented by formula (I): ##STR1## wherein: R represents a hydrogen atom or a lower alkyl group; R.sup.1 represents a lower alkyl group; CH.sub.2 COOR.sup.3, wherein R.sup.3 represents a hydrogen atom or a lower alkyl group; or NHR.sup.4, wherein R.sup.4 represents a formyl group, an acetyl group, a benzoyl group, or a chloroacetyl group, and