Highly efficient and recyclable magnetic nanoparticles-supported gold(III)-bipy catalyst for oxidative α-cyanation of tertiary amines

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• 作者：Weisen Yang^a ; ^b ; Li Wei^a ; Feiyan Yi^a ; Mingzhong Cai^a ; ^{mzcai@jxnu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Oxidative α-cyanation ; Magnetic nanoparticles ; Gold(III)-bipy complex ; Supported gold catalyst ; Heterogeneous catalysis
• 刊名：Tetrahedron
• 出版年：2016
• 出版时间：7 July 2016
• 年：2016
• 卷：72
• 期：27-28
• 页码：4059-4067
• 全文大小：1312 K

文摘

Oxidative α-cyanation of 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 gold catalyst can easily be separated from the reaction mixture by using an external magnet and can be recycled for at least 10 times without any loss of activity.