Patent · US Active

Process for preparing 2,2-difluoroethylamine derivatives by alkylation with 2,2-difluoroethyl-1-haloethanes

US8466293B2 · kind B2 · utility

3Cited by

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20Claims

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Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Norbert Lui · Odenthal, DE
Jens-Dietmar Heinrich · Burscheid, DE
Wahed Ahmed Moradi · Monheim, DE
Christian Funke · Leichlingen, DE

Key dates

Filing date	Jun 13, 2011
Grant date	Jun 18, 2013
Priority date	—
Expiry date	Sep 28, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D213/61
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for preparing 2,2-difluorethylamine derivatives of the general formula (III)in which A is an optionally substituted heterocycle as described in the description, by reacting a 2,2-difluoroethyl-1-haloethane compound of the general formula (I)in which Hal is Cl, Br or iodine, with an amine of the general formula (II)in which A is as defined above, optionally in the presence of a base.

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