Ruthenium-Catalyzed Oxidative Cyanation of Tertiary Amines with Molecular Oxygen or Hydrogen Peroxide and Sodium Cyanide: sp<sup>3</sup> C−H Bond Activation and Carbon−Carbon Bond Formation
demonstration of direct sp(3) C-H bondactivation alpha to nitrogen followed by carbon-carbonbond formation under aerobic oxidation conditions. The catalytic oxidation seems to proceed by (i) alpha-C-H activation of tertiary amines by the ruthenium catalyst to give an iminium ion/ruthenium hydride intermediate, (ii) reaction with molecular oxygen to give an iminium ion/ruthenium hydroperoxide, (iii)
Method for producing an alpha-aminonitrile from a tertiary anime and a cyanide through oxidation with oxygen by using a transition metal catalyst
申请人:——
公开号:US20020042534A1
公开(公告)日:2002-04-11
A method for producing an &agr;-aminonitrile, is disclosed, which method includes the step of oxidizing a tertiary amine with oxygen by using a transition metal catalyst in the presence of a cyanide. The &agr;-aminonitrile thus obtained can be easily converted to amino acids as well as various nitrogen-containing physiologically active materials.
A Highly Efficient Heterogeneous Ruthenium-Catalysed Oxidative α-Cyanation of Tertiary Amines Leading to α-Aminonitriles
作者:Xiaoming Wang、Ruian Xiao、Jingting Ai、Mingzhong Cai
DOI:10.3184/174751917x15064232103065
日期:2017.10
Oxidative α-cyanation of tertiaryamines was achieved by using an MCM-41-immobilised N-alkylethylenediamine ruthenium(III) complex (MCM-41-2N-RuCl3) as catalyst in MeOH at 60 °C in the presence of H2O2 as oxidant and NaCN in acetic acid as a cyanide source to afford the corresponding α-aminonitriles in good yields. The new heterogeneous ruthenium catalyst can easily be prepared by a simple two-step
Controlling One- or Two-Electron Oxidation for Selective Amine Functionalization by Alternating Current Frequency
作者:Disni Gunasekera、Jyoti P. Mahajan、Yanick Wanzi、Sachini Rodrigo、Wei Liu、Ting Tan、Long Luo
DOI:10.1021/jacs.2c02605
日期:2022.6.8
Here, we report a unique electrosynthetic method that enables the selective one-electron oxidation of tertiaryamines to generate α-amino radical intermediates over two-electron oxidation to iminium cations, providing easy access to arylation products by simply applying an optimal alternating current (AC) frequency. More importantly, we have discovered an electrochemical descriptor from cyclic voltammetry
A method for producing an alpha-aminonitrile from a tertiary amine and a cyanide through oxidation with oxygen by using a transition metal catalyst
申请人:OSAKA UNIVERSITY
公开号:EP1174419A1
公开(公告)日:2002-01-23
A method for producing an α-aminonitrile, is disclosed, which method includes the step of oxidizing a tertiary amine. with oxygen by using a transition metal catalyst in the presence of a cyanide. The α-aminonitrile thus obtained can be easily converted to amino acids as well as various nitrogen-containing physiologically active materials.