Patent · US Active

Method for preparing 4-aminobut-2-enolides

US8273904B2 · kind B2 · utility

1Cited by

0References

16Claims

0Family size

Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Norbert Lui · Odenthal, DE
Jens-Dietmar Heinrich · Burscheid, DE

Key dates

Filing date	Sep 5, 2008
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Feb 19, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D307/68
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for preparing 2,2-difluoroethylamine derivatives, wherein compounds of the general formula (IV) are reduced to the corresponding 2,2-difluoroethylamine derivatives of the general formula (III), where the A radical is as defined in the description:

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