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 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.
报道了通过液体辅助研磨将无氮吲哚与α-酮类化合物容易地脱羧酰化。该反应仅需要催化量的Cu(OAc)2 ·H 2 O与作为末端氧化剂的O 2结合就可以高效地得到各种3-酰基环。此外,这种新方法适用于克级合成。