公开(公告)号：US09988353B2

公开(公告)日：2018-06-05

申请号：US15033987

申请日：2014-11-11

Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT

Inventor： Wahed Ahmed Moradi ,  Thomas Himmler ,  Thomas Norbert Mueller ,  Albert Schnatterer ,  Guenter Schlegel

IPC: C07D213/56 ,  C07D213/89 ,  C07D213/38 ,  C07D213/57

CPC classification number: C07D213/56 ,  C07D213/38 ,  C07D213/57 ,  C07D213/89

Abstract: The present invention relates to a novel catalytic hydrogenation of substituted 2-methyl cyanopyridyl derivatives, in particular 3-chloro-5-(trifluoromethyl)pyridin-2-yl]acetonitrile [=Py-CN] to substituted 2-ethylaminopyridine derivatives, in particular 2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethanamine [=Py-ethanamine] or salts thereof in the presence of metal catalysts, in particular palladium catalysts.

公开(公告)号：US09890120B2

公开(公告)日：2018-02-13

申请号：US15126593

申请日：2015-03-18

Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT

Inventor： Wahed Ahmed Moradi ,  Guenter Schlegel ,  Albert Schnatterer

IPC: C07D213/61 ,  C07D213/38

CPC classification number: C07D213/38 ,  C07D213/61

Abstract: A process for preparing N-[(6-chloropyridin-3-yl)methyl]-2,2-difluoroethan-1-amine of formula (III) wherein 2,2-difluoroethylamine of formula (I) is reacted with a halide of formula (II) in the presence of a hydroxide of an alkali metal or alkaline earth metal.

公开(公告)号：US09850263B2

公开(公告)日：2017-12-26

申请号：US15310566

申请日：2015-05-08

Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT

Inventor： Hans-Joachim Ressel ,  Kilian Tellman ,  Mark James Ford ,  Martin Littmann ,  Friedrich August Muehlthau ,  Guenter Schlegel

IPC: C07F9/32 ,  C07F9/30

CPC classification number: C07F9/3211 ,  C07F9/301

Abstract: The present invention relates primarily to a process for preparing certain phosphorus-containing cyanohydrins of the formula (I), and also to certain phosphorus-containing cyanohydrins per se and to their use for the preparation of glufosinate and/or glufosinate salts. The present invention further relates to certain mixtures particularly suitable for preparing the phosphorus-containing cyanohydrins of the formula (I).