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. 11, 1992
Filed:
Dec. 03, 1990
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564 90 ; 564 85 ; 564 84 ;
Abstract
2-(2-haloethylthio)-phenylsulfonamides of formula I ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.5 alkyl or C.sub.2 -C.sub.5 alkenyl and Z is hydrogen, fluorine or chlorine, are prepared by converting a phenylsulfonamide of formula II ##STR2## wherein Y is a tertiary alkyl group or a silyl group in succession and without isolating intermediates, with