Highly efficient synthesis of 4-trifluoromethylfuran derivatives via a sequential deprotection-annulation reaction
作者:Jiming Zhang、Xiaoming Zhao、Youhua Li、Long Lu
DOI:10.1016/j.tetlet.2006.04.110
日期:2006.7
(E)-O-protected-2-trifluoromethyl-1-bromo-1-substituted allylic alcohol reacted with terminal alkynes under Sonogashira reaction condition to give the corresponding (E)-2-en-4-ynoic alcohol derivatives. Which was further converted to the corresponding 4-trifluoromethylfuran derivatives via a sequential deprotection-annulation reaction in moderate to excellent yields. (c) 2006 Elsevier Ltd. All rights reserved.