Electron Donor–Acceptor Complex-Initiated Photochemical Cyanation for the Preparation of α-Amino Nitriles
作者:Qing Xia、Yufei Li、Lan Cheng、Xin Liang、Chenlin Cao、Peng Dai、Hongping Deng、Weihua Zhang、Qingmin Wang
DOI:10.1021/acs.orglett.0c03703
日期:2020.12.18
An electron donor–acceptor complex-initiated α-cyanation of tertiaryamines has been described. The reaction protocol provides a novel method to synthesize various α-aminonitriles under mild conditions. The reaction can proceed smoothly without the presence of photocatalysts and transition metal catalysts, and either oxidants are unnecessary or O2 is the only oxidant. The practicality of this method
An aerobic photocatalytic oxidative cyanation of tertiary amines providing valuable α-aminonitriles in good to excellent yields was developed. Mild reaction conditions and low catalyst loading are attractive features of the protocol.
Oxidative cyanation of <i>N</i>-aryltetrahydroisoquinoline induced by visible light for the synthesis of α-aminonitrile using potassium thiocyanate as a “CN” agent
作者:Bing Yi、Ning Yan、Niannian Yi、Yanjun Xie、Xiaoyong Wen、Chak-Tong Au、Donghui Lan
DOI:10.1039/c9ra06120g
日期:——
A novel method for the synthesis of α-aminonitrile through visible-light-induced oxidative cyanation of N-aryltetrahydroisoquinoline with potassium thiocyanate has been developed. The process does not require the use of a photocatalyst, transition metal reagent, strong oxidizing agent, or toxic cyano-containing compound, which makes the reaction simple and green.
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