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:
Sep. 21, 1978
Applicant:
Inventor:
Franz Landauer, Frankfurt am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
m-Halobenzoyl halides are prepared by chlorinating or brominating benzoyl chloride or benzoyl bromide in the absence of a solvent and in the presence of FeCl.sub.3 or FeBr.sub.3 as the catalyst and of sulfur and/or at least one inorganic and/or organic sulfur compound as the cocatalyst, at a temperature of from about 0.degree. to 90.degree. C. The compounds are valuable starting products and intermediates for the manufacture of dyestuffs, pharmaceuticals and plant protectives.
Landauer, Franz. (1980). Process for the manufacture of m-halobenzoyl halides (U.S. Patent No. 4190600). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4190600
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile