Surfactant-assisted synthesis of bis(indolyl)methanes in water
作者:Eskandar Kolvari、Mohammad Ali Zolfigol、Hoda Banary
DOI:10.1016/j.cclet.2011.07.004
日期:2011.11
Abstract An environmentally friendly synthesis method for bis(indolyl)methanes has been developed in the presence of sodium lauryl ether sulfate (SLES), electrophilic substitution reactions of indoles with aldehydes were accomplished in water as solvent at room temperature without any Bronested or Lewis acid catalysts.
Melamine formaldehyde resin supported H+ is used as an efficient catalyst in the Pechmann condensation reaction of phenols with beta-ketoesters, in solvent-free media leading to the formation of coumarin derivatives using conventional heating and microwave irradiation in excellent yields with good purity. (C) 2011 Ramin Rezaei. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.