Catalytic Chemo‐ and Regioselective Radical Carbocyanation of 2‐Azadienes for the Synthesis of α‐Amino Nitriles
作者:Shengzu Duan、Ya Du、Lingling Wang、Xun Tian、Yujin Zi、Hongbin Zhang、Patrick J. Walsh、Xiaodong Yang
DOI:10.1002/anie.202300605
日期:——
construction of complex α- and β-functionalized α-amino nitrile derivatives through a novel cascade strategy is presented. Alkyl radicals are generated by the photo-mediated reductivedecarboxylation of redox-active esters, captured by 2-azadienes to provide 2-azallyl radicals and cyanized by a copper catalyst.
strategies have been established for the preparation of bridgehead aminobicyclics. However, methods to assemble the bridge-amino hydrocarbon skeleton, which serves as a meta-substituted arene bioisostere, are limited. Herein, a general approach to access 2-aminobicyclo[2.1.1]hexanes (aminoBCHs) by titanium-catalyzed formal [2π + 2σ] cycloaddition of bicyclo[1.1.0]butanes and 2-azadienes was developed