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.:

US 6441233 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 27, 2002

Filed:

Jun. 21, 2001
Applicant:
Inventors:

Anita Schnyder, Allschwil, CH;

Adriano Indolese, Möhlin, CH;

Gerald Mehltretter, Rostock, DE;

Assignee:

Solvias AG, Basel, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract

A process for the preparation of primary aromatic carboxamides by the carbonylation of an aromatic compound, which contains at least one leaving group, with carbon monoxide, in the presence of a homogeneous or heterogeneous Pd catalyst and at least stoichiometric amounts of an amidation agent at elevated temperatures, which is characterized in that a primary carboxamide or a primary urethane is used as the amidation agent, and the reaction is carried out in the presence of an acylation catalyst.


Find Patent Forward Citations

Schnyder, Anita. (2002). Process for the preparation of aromatic carboxylic acid amides (U.S. Patent No. 6441233). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6441233

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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