Patent · US Active

Method for preparing 5-fluoro-1H-pyrazole-4-carbonyl fluorides

US10125103B2 · kind B2 · utility

0Cited by

3References

11Claims

0Family size

Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Sergii Pazenok · Solingen, DE
Hans Martin Thomas · Leichlingen, DE
Frank Volz

Key dates

Filing date	Apr 28, 2016
Grant date	Nov 13, 2018
Priority date	—
Expiry date	Apr 28, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D231/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a novel method for preparing 5-fluoro-1H-pyrazole-4-carbonyl fluorides by halogen exchange reaction of 5-chloro-1H-pyrazole-4-carbonyl chlorides with alkali metal fluorides, using non-polar solvents.

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