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. 13, 1988
Filed:
Jun. 03, 1986
Applicant:
Inventors:
Kenichi Miyazawa, Shimizu, JP;
Osamu Furusawa, Fuji, JP;
Assignee:
Ihara Nikkei Chemical Industry Co., Ltd., Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
There is provided a method for preparing .beta.-chloropivaloyl chloride which includes chlorinating pivalic acid to form pivaloyl chloride and reacting the resultant pivaloyl chloride with a chlorine gas in a gaseous phase to form .beta.-chloropivaloyl chloride. Both steps may be carried out by a continuous process or a batch process. According to this method, the chlorination in the second step can be achieved at a low temperature, and the formation of by-products is reduced and production efficiency can be enhanced.