Patent · US Expired

Process for the preparation of fluorinated carboxylic acid fluorides

US4985594A · kind A · utility

1Cited by

1References

9Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Peter Blickle · Hofheim, DE
Klaus Hintzer · Woodbury, US
Werner Schwertfeger · Altötting, DE
Heinz Strutz · Usingen, DE

Key dates

Filing date	Aug 3, 1989
Grant date	Jan 15, 1991
Priority date	—
Expiry date	Aug 3, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/58
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for the preparation of fluorinated carboxylic acid fluorides Fluorinated carboxylic acid fluorides of the Formula I ##STR1## can be prepared from fluorinated vinyl ethers of the Formula II ##STR2## by heating the vinyl ethers to a temperature of 100.degree. to 350.degree. C. Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.

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