Patent · US Expired

Preparation of fluoromethylthiobenzoyl fluorides

US4590016A · kind A · utility

0Cited by

4References

6Claims

0Family size

Assignee

BASF SE

Inventors

Juergen Varwig · Heidelberg, DE
Gerhard Hamprecht · Weinheim, DE

Key dates

Filing date	Mar 14, 1984
Grant date	May 20, 1986
Priority date	—
Expiry date	Mar 14, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C323/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Novel fluoromethylthiobenzoyl fluorides are prepared by reacting a trichloromethylthiobenzoyl chloride with hydrogen fluoride at from 10.degree. to 130.degree. C., and are useful starting materials for the preparation of crop protection agents. The process of the invention is selective in permitting the optional production of either a trifluoromethylthiobenzoyl fluoride or a difluoromonochloromethylthiobenzoyl fluoride, depending upon the temperature employed.

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