Intramolecular Dehydrative Coupling of Tertiary Amines and Ketones Promoted by KO-<i>t</i>-Bu/DMF: A New Synthesis of Indole Derivatives
作者:Wen-tao Wei、Xue-jiao Dong、Shao-zhen Nie、Yan-yan Chen、Xue-jing Zhang、Ming Yan
DOI:10.1021/ol402908m
日期:2013.12.6
A new synthesis of indole derivatives has been achieved through intramolecular dehydrative coupling of tertiary amines and ketonespromoted by KO-t-Bu/DMF. The reaction probably proceeds via an α-amino alkyl radical pathway.
通过KO- t- Bu / DMF促进的叔胺和酮的分子内脱水偶联,实现了吲哚衍生物的新合成。该反应可能通过α-氨基烷基自由基途径进行。
Brønsted acid cocatalysis in photocatalytic intramolecular coupling of tertiary amines: efficient synthesis of 2-arylindols
作者:Xiaoqian Yuan、Xinxin Wu、Shupeng Dong、Guibing Wu、Jinxing Ye
DOI:10.1039/c6ob01239f
日期:——
We report herein a highly efficient intramolecular coupling reaction of tertiaryamines and ketones (α,β-unsaturated ketones) by using a Brønsted acid as a cocatalyst, affording 2-arylindols in good to excellent yields (up to 92%) under visible light irradiation at room temperature.