Patent · US Active

Method for preparing nitropyrazoles

US11530185B2 · kind B2 · utility

0Cited by

0References

7Claims

0Family size

Assignees

ArianeGroup SAS · FR
EURENCO · FR

Inventors

Sébastien COMTE · Savigny-le-Temple, FR
Elsa Delmas · Toulouse, FR

Key dates

Filing date	Aug 30, 2019
Grant date	Dec 20, 2022
Priority date	—
Expiry date	Aug 30, 2039

Classification

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

Abstract

A process for the sigmatropic rearrangement of the compound of formula in which R3 is an NO2 group and R4 is either a hydrogen or an NO2 group, includes heat treating the compound by microwave.

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