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:
Apr. 02, 1996
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Heinz Isak, Bohl-Iggelheim, DE;
Herbert Bayer, Mannheim, DE;
Michael Keil, Freinsheim, DE;
Thomas Wettling, Limburgerhof, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02C / ;
U.S. Cl.
CPC ...
562861 ; 562862 ;
Abstract
A process for preparing o-chloromethylbenzoyl chlorides of the formula I ##STR1## where m is 0 or an integer from 1 to 4 and X is halogen or C-organic radicals, entails reacting a corresponding lactone of the formula II ##STR2## with thionyl chloride in the presence of a catalyst.
Isak, Heinz. (1996). Preparation of o-chloromethylbenzoyl chlorides (U.S. Patent No. 5504249). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5504249
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile