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. 26, 1980
Filed:
Apr. 11, 1978
Applicant:
Inventors:
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560168 ; 548246 ; 548248 ;
Abstract
Lower alkyl 2-chloro-2-hydroxyiminoacetates are produced by (A) reacting chloral with a lower alkanol and a hydroxylamine salt in the presence of a Lewis acid or a metal oxide which is convertible into said Lewis acid during the course of the reaction to give a lower alkyl 2-hydroxyiminoacetate and then chlorinating the resulting product or (B) reacting chloral oxime with a lower alkanol in the presence of a base to give a lower alkyl 2-hydroxyiminoacetate and finally chlorinating the thus formed product.