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. 27, 1988
Filed:
Aug. 21, 1987
Applicant:
Inventors:
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
544 35 ; 544 51 ; 544 52 ; 544102 ; 544105 ; 544347 ; 544353 ; 540605 ; 540609 ; 546165 ; 546223 ; 546230 ; 548444 ; 548491 ; 548557 ; 548561 ; 558376 ;
Abstract
A process for ortho-cyanation of phenols or phenylamines which comprises reacting a phenyl compound having hydroxy or optionally substituted amino or cyclic amino, of which ortho position is vacant, with trichloroacetonitrile, C.sub.1 -C.sub.5 alkyl thiocyanate or C.sub.6 -C.sub.12 aryl thiocyanate in the presence of a boron trihalide and treating the resultant product with an alkali is provided, and said process is useful in the synthesis of intermediates for medicinals or pesticides.