Patent · US Expired

2-ketosulfonamides and process for their preparation

US4650902A · kind A · utility

1Cited by

1References

2Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Albert Bender · Mainz, DE
Dieter Gunther · Kelkheim, DE
Lothar Willms · Hillscheid, DE
Rainer Wingen · Hattersheim, DE

Key dates

Filing date	Jun 27, 1984
Grant date	Mar 17, 1987
Priority date	—
Expiry date	Jun 27, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2602/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to new 2-ketosulfonamides of the formula ##STR1## and to a process for their preparation, wherein the reaction mixtures obtained by reacting enamines of the formula ##STR2## with sulfamoyl halides of the formula ##STR3## are hydrolyzed to the 2-ketosulfonamides.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.