A new Pd‐catalyzed carbonylation of indoles for the synthesis of indol‐3‐yl arylketones under CO‐free conditions was developed. The reaction showed a broad substrate scope with moderate to excellent yields.
Acylation of indoles via photoredox catalysis: a route to 3-acylindoles
作者:Lijun Gu、Cheng Jin、Jiyan Liu、Hongtao Zhang、Minglong Yuan、Ganpeng Li
DOI:10.1039/c5gc01931a
日期:——
A visible-light-catalyzed synthesis of 3-acylindoles from simple indoles and α-oxo acids at room temperature has been discovered. This method offers rapid access to 3-acylindoles through C–C and C–H bond activation.
Visible light-induced carbonylation of indoles with arylsulfonyl chlorides and CO
作者:Xiangguang Li、Deqiang Liang、Wenzhong Huang、Hongfu Zhou、Zhao Li、Baoling Wang、Yinhai Ma、Hai Wang
DOI:10.1016/j.tet.2016.11.009
日期:2016.12
A novel and simple strategy for the visible light-induced efficient synthesis of indol-3-yl aryl ketones from readily available arylsulfonyl chlorides and indoles with CO at room temperature was developed. This metal-free protocol has good functional group tolerance and avoids the use of transition-metal catalysts, additives, and alkaline or acidic reaction medium.
Synthesis of indol-3-yl aryl ketones through visible-light-mediated carbonylation
作者:Hong-Tao Zhang、Li-Jun Gu、Xiang-Zhong Huang、Rui Wang、Cheng Jin、Gan-Peng Li
DOI:10.1016/j.cclet.2015.10.012
日期:2016.2
Abstract A visible-light-catalyzed synthesis of indol-3-yl arylketones from aryldiazonium salts, CO and indoles at room temperature was developed. This process provides a useful method for the preparation of diverse indol-3-yl arylketones from readily accessible reactants under base-free, acid-free and transition-metal-free conditions.
example of photocatalytic cross-coupling of alkenes with aldehydes by a single catalyst without an external photosensitizer and any additives. Irradiation of the aromatic aldehyde and cobaloxime catalyst results in the formation of an acyl radical, which undergoes radical addition with alkene or indole and subsequently β-H elimination to afford alkenyl ketone. The reaction features cheap and readily available