Patent · US Expired

1,2-Dihalogenoalkylsulfonyl isocyanates and 1,2-di-halogenocycloalkylsulfonyl isocyanates and process for their manufacture

US4448731A · kind A · utility

0Cited by

1References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Lothar Willms · Hillscheid, DE
Dieter Gunther · Kelkheim, DE
Thomas Huttelmaier · Kelkheim, DE

Key dates

Filing date	Aug 30, 1982
Grant date	May 15, 1984
Priority date	—
Expiry date	Aug 30, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C311/65
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Compounds of the formula ##STR1## wherein X is halogen, R.sub.1 and R.sub.2 are hydrogen, halogen, (halo)alk(en)yl, (halo)alkoxyalkyl or together form an (optionally substituted) alkylene bridge, and R.sub.3 is hydrogen, alkyl or halogen are valuable intermediates in particular for the manufacture of pesticides.

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