Decarboxylative/decarbonylative C3-acylation of indoles via photocatalysis: a simple and efficient route to 3-acylindoles
作者:Qing Shi、Pinhua Li、Xianjin Zhu、Lei Wang
DOI:10.1039/c6gc00516k
日期:——
A simple and efficient strategy for the preparation of 3-acylindoles via visible-light promoted C3-acylation of free (NH)- and N-substituted indoles with a-oxocarboxylic acids was developed. The reaction tolerates a wide...
3-Acylindoles via a One-Pot, Regioselective Friedel-Crafts Reaction
作者:Wayne M. Stalick、James H. Wynne、Christopher T. Lloyd、Samuel D. Jensen、Sean Boson
DOI:10.1055/s-2004-831177
日期:——
Within we report a general one-pot high-yielding Friedel-Crafts acylation of indole using acid chlorides and diethyl- aluminum chloride in gram scale quantities. This general synthesis affords products that are easily isolated and require no complex pu- rification procedures.
Decarboxylative acylation of <i>N</i>-free indoles enabled by a catalytic amount of copper catalyst and liquid-assisted grinding
作者:Jingbo Yu、Chao Zhang、Xinjie Yang、Weike Su
DOI:10.1039/c9ob00622b
日期:——
A facile decarboxylativeacylation 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.