作者:Jia Liang、Ying Fu、Xiazhen Bao、Lanlan Ou、Tongzhi Sang、Yong Yuan、Congde Huo
DOI:10.1039/d0cc08126d
日期:——
We report a catalytic oxidative C–H cyanation of glycinederivatives using a simple copper(I) catalyst with NFSI as an oxidant via a radical process to furnish α-cyano glycinederivatives, which are useful intermediates for organic synthesis. CuCl acted as both a one-electron reductant and a transition-metal catalyst in this transformation. NFSI served as a one-electron oxidant and generated a N-centered
Enantio- and Diastereoselective De Novo Synthesis of 3-Substituted Proline Derivatives via Cooperative Photoredox/Brønsted Acid Catalysis and Epimerization
作者:Chao Che、Yi-Nan Lu、Chun-Jiang Wang
DOI:10.1021/jacs.2c12995
日期:2023.2.8
a novel strategy for the catalytic asymmetric synthesis of enantioenriched 3-cis- and 3-trans-substituted prolines has been successfully established via an unprecedented cascade radical addition/cyclization enabled by synergistic photoredox/Brønsted acid catalysis and subsequent base-assisted epimerization. The current protocol provides a unique denovo access to all four stereoisomers of 3-substituted