890-29-9Relevant articles and documents
Palladium-Catalyzed 2-fold C-H Activation/C-C Coupling for C4-Arylation of Indoles Using Weak Chelation
Basak, Shubhajit,Paul, Tripti,Punniyamurthy, Tharmalingam
supporting information, p. 554 - 558 (2022/01/20)
Palladium-catalyzed weak chelation-assisted regioselective C4-arylation of indoles has been accomplished using a readily available arene at moderate temperature. The C4-arylation, weak chelating benzoyl (Bz) directing group, cross-dehydrogenative coupling (CDC), broad substrate scope, and late-stage diversifications are the important practical features.
Decarboxylative acylation of: N -free indoles enabled by a catalytic amount of copper catalyst and liquid-assisted grinding
Yu, Jingbo,Zhang, Chao,Yang, Xinjie,Su, Weike
supporting information, p. 4446 - 4451 (2019/05/16)
A facile decarboxylative acylation of N-free indoles with α-ketonates via liquid-assisted grinding was reported. The reaction requires only a catalytic amount of Cu(OAc)2·H2O in combination with O2 as the terminal oxidant to give various 3-acylindoles with high efficiency. Additionally, this new methodology was applicable to a gram-scale synthesis.
A novel microwave-irradiated solvent-free 3-acylation of indoles on alumina
Lai, Qiu Yu,Liao, Rong Su,Wu, Shao Yong,Zhang, Jia Xin,Duan, Xin Hong
, p. 4069 - 4076 (2013/12/04)
A simple and efficient 3-acylation of indoles under microwave-heated and solvent-free conditions is developed. This general procedure uses neutral Al2O3 as a new, green and reusable catalyst giving good to high yields within short reaction times. Utilizing such an environmentally- benign methodology, a variety of indoles bearing electron-releasing or electron-withdrawing groups were conveniently acylated.