Process for the reductive amination of halogen-containing substrates

    公开(公告)号:US10173961B2

    公开(公告)日:2019-01-08

    申请号:US15523864

    申请日:2015-11-04

    申请人: Taminco BVBA

    摘要: Disclosed is a process for performing a reductive amination of a first functional group in an organic feed substrate, which feed substrate comprises at least one further functional group containing a halogen atom, wherein the halogen atom is selected from the list consisting of chlorine, bromine, iodine, and combinations thereof, in the presence of hydrogen and a heterogeneous catalyst comprising at least one metal from the list of Pd, Pt, Rh, Ir, and Ru, and in absence of any catalytic amount of any second metal from the list consisting of Ag, Ni, Co, Sn, Bi, Cu, Au, and combinations thereof. The process is preferably applied for the reductive amination of 2-chloro-benzaldehyde to form 2-chloro-benzyldimethylamine, as an intermediate in the production of active agrochemical compounds and microbicides of the methoximinophenylglyoxylic ester series.

    IMPROVED PROCESS FOR THE REDUCTIVE AMINATION OF HALOGEN-CONTAINING SUBSTRATES

    公开(公告)号:US20170320812A1

    公开(公告)日:2017-11-09

    申请号:US15523864

    申请日:2015-11-14

    申请人: Taminco BVBA

    摘要: Disclosed is a process for performing a reductive amination of a first functional group in an organic feed substrate, which feed substrate comprises at least one further functional group containing a halogen atom, wherein the halogen atom is selected from the list consisting of chlorine, bromine, iodine, and combinations thereof, in the presence of hydrogen and a heterogeneous catalyst comprising at least one metal from the list of Pd, Pt, Rh, Ir, and Ru, and in absence of any catalytic amount of any second metal from the list consisting of Ag, Ni, Co, Sn, Bi, Cu, Au, and combinations thereof. The process is preferably applied for the reductive amination of 2-chloro-benzaldehyde to form 2-chloro-benzyldimethylamine, as an intermediate in the production of active agrochemical compounds and microbicides of the methoximinophenylglyoxylic ester series.