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