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. 17, 1985
Filed:
Sep. 15, 1982
Applicant:
Inventors:
Antonius Corvers, Beek, NL;
Joannes M Mulders, Geleen, NL;
Assignee:
Stamicarbon B.V., Licensing Subsidiary of DSM, Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07C / ;
U.S. Cl.
CPC ...
546341 ; 546342 ; 549 79 ; 549499 ; 560-8 ; 560 55 ; 560105 ;
Abstract
The invention relates to a process for the preparation of derivatives of dichloroacetic acid esters, by reaction of a glyoxylic acid ester having the general formula R.sub.1 --CO--COOR.sub.2, wherein R.sub.1 represents an optionally substituted aryl or heteroaryl group and R.sub.2 an alkyl, cycloalkyl or aryl group, with phosphoruspentachloride in the presence of a dispersant suitable for distributing the phosphoruspentachloride.
Corvers, Antonius. (1985). Preparation of derivatives of dichloroacetic acid esters (U.S. Patent No. 4542220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4542220
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile