Copper-catalysed benzofuran synthesis: developing aryl bromide–alkenyl triflates as general heterocycle precursors
作者:Andrew C. Tadd、Mark R. Fielding、Michael C. Willis
DOI:10.1016/j.tetlet.2007.08.109
日期:2007.10
A range of conjugated aryl bromide-alkenyl triflates, previously described as indole precursors, are efficiently converted to the corresponding benzofurans when treated with CuI/TMEDA and potassium hydroxide. (C) 2007 Elsevier Ltd. All rights reserved.