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:
Aug. 15, 1989
Filed:
Nov. 05, 1987
Applicant:
Inventors:
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544349 ; 544 35 ; 558250 ; 558252 ; 558257 ; 546244 ; 548530 ; 549513 ;
Abstract
A process for introducing thiocarboxylic ester at ortho-position of phenols or phenylamines which comprises reacting a phenyl compound having group or optionally substituted amino or cyclic amino group, of which at least one ortho-position is vacant, with C.sub.1 -C.sub.5 alkyl thiocyanate, C.sub.7 -C.sub.13 aralkyl thiocyanate or C.sub.6 -C.sub.12 aryl thiocyanate in the presence of a boron trihalide and hydrolyzing the resultant product under acidic conditions is provided, and said process is useful in the synthesis of medicinals, pesticides and dyes.