Patent · US Expired

Substituted 2,4-dialkoxy benzene sulfonyl chlorides

US4618459A · kind A · utility

1Cited by

2References

10Claims

0Family size

Assignee

Choay, S.A. · FR

Inventors

Jean-Paul Fournier · Paris, FR
Patrick Choay · Paris, FR

Key dates

Filing date	Dec 30, 1983
Grant date	Oct 21, 1986
Priority date	—
Expiry date	Dec 30, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C309/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to trisubstituted sulfohalides, the process for their preparation and their use as intermediate products for the manufacture of novel compounds. The trisubstituted sulfohalides according to the invention correspond to the following general formula (I): ##STR1## in which: X is a halogen atom, particularly bromine or preferably chlorine; R.sub.3 and R.sub.4 each represent, independently of one another, a lower alkyl radical having from 1 to 4 carbon atoms, A represents hydrogen, halogen, alkoxy radicals having from 1 to 4 carbon atoms, alkylsulfonyl groups having from 1 to 4 carbon atoms, or the group NO.sub.2, or CF.sub.3. The invention is useful in the manufacture of medicaments.

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