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.
A Unique Combined Source of “CN” from 1,2-Dichloroethane and TMSN<sub>3</sub> in the Copper-Catalyzed Cyanation of a C(sp<sup>3</sup>)–H Bond Adjacent to a Nitrogen Atom
作者:Gen Zhang、Yunxia Ma、Guangbin Cheng、Dabin Liu、Rui Wang
DOI:10.1021/ol500045p
日期:2014.2.7
A novel combined metal-free “CN” source from trimethylsilyl azide and 1,2-dichloroethane has been developed and successfully applied to copper-catalyzed oxidative cyanation of α-C–H tertiary amines for the synthesis of C1-cyanation tetrahydroisoquinoline derivatives with good to excellent yields for the first time.
organic electron donor (OED), the reduction of “push–pull” C–C single bond and reductivedecyanation of tetrahydroisoquinolines were realized. These reactions exhibited higher reaction efficiency and better functional group tolerance compared with those of metallic reductants, and the mechanistic study indicated that a radicalintermediate was involved in the reduction of the C–C single bond, which provides