Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates
作者:Qihang Guo、Xiang Ren、Zhan Lu
DOI:10.1021/acs.orglett.8b03299
日期:2019.2.15
catalyst-controlled intramolecular unactivated C(sp3)-H amination and oxygenation of carbamates merging visible-light photocatalysis and earth-abundant transition metal catalysis have been reported. Useful amino alcohol and diol derivatives could be selectively obtained from readily available tertiary alcohol derivatives. The possible mechanisms have been proposed via a 1,5-HAT process followed by Lewis acid-controlled
双重控制的分子内未活化的C(sp 3)-H氨基化和氨基甲酸酯的氧合将可见光光催化和地球过渡金属催化结合在一起的报道。有用的氨基醇和二醇衍生物可以从容易获得的叔醇衍生物中选择性地获得。已经通过1,5-HAT方法,接着路易斯酸控制的环化,提出了可能的机理。镍和锌催化剂分别抑制氧合和胺化产物的形成。还观察到有趣的手性转移现象。