Nucleophilic Attack of α-Aminoalkyl Radicals on CarbonNitrogen Triple Bonds to Construct α-Amino Nitriles: An Experimental and Computational Study
作者:Chao Zhang、Chunmei Liu、Ying Shao、Xiaoguang Bao、Xiaobing Wan
DOI:10.1002/chem.201303296
日期:2013.12.23
A new reactivity pattern of α‐aminoalkyl radicals, involving nucleophilicattack on CN triplebonds under thermal conditions, has been developed to construct α‐amino nitriles. In contrast to previous CH functionalization of tertiary amines involving α‐aminoalkyl radicals, this methodology does not require the use of photocatalytic conditions or a transition‐metal catalyst. Inexpensive and nontoxic
作者:Fachao Yan、Zijun Huang、Chen-Xia Du、Jian-Fei Bai、Yuehui Li
DOI:10.1016/j.jcat.2021.01.003
日期:2021.3
Streckerreaction is widely applied for the synthesis of amino acids from aldehydes, amines and cyanides. Herein, we report the FeI2-catalyzed reductive Strecker type reaction of formamides instead of aldehydes to produce amino acetonitriles. The challenging capture of carbinolamine intermediates by CN− was achieved via Fe catalysis. This approach afforded better yields than the use of Ir- or Rh-catalysts
Metal-Free Aerobic Oxidative Cyanation of Tertiary Amines: Azobis(isobutyronitrile) (AIBN) as a Sole Cyanide Source
作者:Peng-Yu Liu、Chao Zhang、Shi-Chen Zhao、Fang Yu、Fei Li、Yu-Peng He
DOI:10.1021/acs.joc.7b02021
日期:2017.12.1
An aerobicoxidative cyanation for the synthesis of α-aminonitriles was reported. The formation of C(sp3)-CN bonds was achieved under a metal-free condition by utilizing azobis(isobutyronitrile) as a sole organic cyanide source with the combination of pivalic acid and sodium acetate as additives.
Highly efficient and recyclable magnetic nanoparticles-supported gold(III)-bipy catalyst for oxidative α-cyanation of tertiary amines
作者:Weisen Yang、Li Wei、Feiyan Yi、Mingzhong Cai
DOI:10.1016/j.tet.2016.05.037
日期:2016.7
tertiary amines with trimethylsilyl cyanide was achieved by using a magnetic nanoparticles-supported gold(III)-bipy complex as catalyst to afford the corresponding α-aminonitriles in good to excellent yields in the presence of tert-butyl hydroperoxide under acid-free conditions. The new heterogeneous goldcatalyst can easily be separated from the reaction mixture by using an external magnet and can be recycled