Environmentally friendly and regioselective C3-alkylation of indoles with alcohols through a hydrogen autotransfer strategy
作者:Rafael Cano、Miguel Yus、Diego J. Ramón
DOI:10.1016/j.tetlet.2013.04.062
日期:2013.6
The direct alkylation of indoles using KOH and alcohols, as initial source of the electrophile, under solvent-free conditions is a safe and environmentally benign strategy for selective modification of these structures at the C-3-position, without using hazardous and difficult to handle bromide or iodide derivatives or toxic and expensive transition metal catalysts. The protocol shows a broad scope, including halogenated indoles and secondary alcohols. (c) 2013 Elsevier Ltd. All rights reserved.