Electrochemical strategies for <i>N</i>-cyanation of secondary amines and α <i>C</i>-cyanation of tertiary amines under transition metal-free conditions
作者:Zhengjiang Fu、Yaping Fu、Jian Yin、Guangguo Hao、Xuezheng Yi、Tingting Zhong、Shengmei Guo、Hu Cai
DOI:10.1039/d1gc02529e
日期:——
Transition metal-free electrochemical approaches for the N-cyanation of secondaryamines and the α C-cyanation of tertiaryamines have been well established, with products being obtained in moderate to good yields and with good functional group tolerance under ambient conditions. The synthetic application of the protocols has been highlighted through scale-up experiments in a galvanostatic mode. Preliminary
Electrochemically promoted oxidative α-cyanation of tertiary and secondary amines using cheap AIBN
作者:Qing-Wen Gui、Zhi-Yuan Xiong、Fan Teng、Tian-Cheng Cai、Qiang Li、Wenxia Hu、Xiaoli Wang、Jialing Yu、Xiaoying Liu
DOI:10.1039/d1ob01416a
日期:——
The electrochemical α-cyanation of tertiary and secondary amines has been developed by using a cheap cyanide reagent, azobisisobutyronitrile (AIBN). The CN radical, generated through n-Bu4NBr-meidated electrochemical oxidation, participates in a novel α-cyanation reaction under exogenous oxidant-free conditions.
the conversion of visiblelight to electrical energy and C–Hactivation by the synergistic catalytic effect of visible-light and photoelectric current. An atom-economical and environment-friendly self-biasing interfacial photo-electrocatalytic method for cascade C–Hactivation/cyclization is provided to construct N-containing fused ring compounds using an m-BiVO4 film as a photoanode. There are obvious
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.