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:
Jun. 15, 1993
Filed:
Apr. 29, 1992
Applicant:
Inventors:
Willy Meyer, Riehen, CH;
Urs Siegrist, Eiken, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
564 90 ; 562 74 ; 562830 ; 562833 ;
Abstract
There is disclosed a multi-step process for the preparation of benzenesulfonamides of general formula ##STR1## wherein R is 3,3-difluorobutyl or 3,3-difluorobuten-1-yl. The benzenesulfonamides obtainable by the process of the invention are intermediates for the synthesis of herbicidally active sulfonyl ureas.
Meyer, Willy. (1993). Process for the preparation of benezenesulfonamides (U.S. Patent No. 5220062). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5220062
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile