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. 20, 1991
Filed:
Jun. 26, 1986
Applicant:
Inventors:
Mitsuto Fujiwhara, Tokyo, JP;
Tamotsu Kojima, Tokyo, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564314 ; 544-5 ; 544312 ; 544385 ; 546219 ; 548123 ; 548183 ; 548210 ; 548227 ; 548311 ; 562439 ;
Abstract
A process for producing a chlorohenylhydrazine compound is disclosed, which comprises chlorinating at least one hydrogen atom on the phenyl nucleus in a beta-imidated phenylhydrazine compound and subsequently hydrolyzing the chlorinated compound. Said chlorophenylhydrazine compound is useful as starting material for the production of herbicide, insecticide and photographic coupler is produced in high yield and low cost.