Patent · US Expired

2-alkylmercapto-4-(trifluoromethyl)benzoic esters and a process for their preparation

US5744021A · kind A · utility

2Cited by

5References

20Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Peter Brungs · Altötting, DE
Thomas D. Karcher · Rocky River, US
Klaus Kuhlein · Kelkheim, DE
Hans Millauer · Eschborn, DE
Manfred Wildt · Brombachtal, DE

Key dates

Filing date	Dec 20, 1996
Grant date	Apr 28, 1998
Priority date	—
Expiry date	Dec 20, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C319/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to 2-alkylmercapto-4-(trifluoromethyl)benzoic esters of the formula (II), in which R.sup.1 and R.sup.2 are, independently of each other, (C.sub.1 -C.sub.6) alkyl, and a process for their preparation, which comprises reacting 3,4-dichlorobenzotrifluoride electrochemically at an anode with CO.sub.2 to give 2-chloro-4-(trifluoromethyl)-benzoate, converting it into the corresponding benzoic ester of the formula (I), and then reacting it with an alkylmercaptide R.sup.2 S.sup.e. ##STR1##

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