NaI/PPh<sub>3</sub>-Mediated Photochemical Reduction and Amination of Nitroarenes
作者:Zhonghua Qu、Xing Chen、Shuai Zhong、Guo-Jun Deng、Huawen Huang
DOI:10.1021/acs.orglett.1c01654
日期:2021.7.16
halogen (Cl, Br, and even I), aldehyde, ketone, carboxyl, and cyano. Moreover, the photoredox catalysis with NaI and stoichiometric PPh3 provides also an alternative entry to Cadogan-type reductive amination when o-nitrobiarenes were used.
发现基于 NaI 和 PPh 3组合的温和无过渡金属和无光敏剂的光氧化还原系统能够高度选择性地还原硝基芳烃。该协议允许广泛的可还原官能团,如卤素(Cl、Br 甚至 I)、醛、酮、羧基和氰基。此外,当使用邻硝基双芳烃时,NaI 和化学计量 PPh 3的光氧化还原催化也提供了 Cadogan 型还原胺化的替代入口。