Photocatalytic and Chemoselective Transfer Hydrogenation of Diarylimines in Batch and Continuous Flow
作者:Dean J. van As、Timothy U. Connell、Martin Brzozowski、Andrew D. Scully、Anastasios Polyzos
DOI:10.1021/acs.orglett.7b03565
日期:2018.2.16
imines in batch and continuous flow is described. The reaction utilizes Et3N as both hydrogen source and single-electron donor, enabling the selective reduction of imines derived from diarylketimines containing other reducible functional groups including nitriles, halides, esters, and ketones. The dual role of Et3N was confirmed by fluorescence quenching measurements, transient absorption spectroscopy,
描述了用于间歇和连续流动的亚胺化学选择性转移氢化的可见光光催化方法。该反应利用Et 3 N作为氢源和单电子供体,从而能够选择性还原衍生自含有其他可还原官能团(包括腈,卤化物,酯和酮)的二芳基酮亚胺的亚胺。Et 3 N的双重作用已通过荧光猝灭测量,瞬态吸收光谱和氘标记研究得到了证实。连续流处理有助于直接扩大反应规模。