A facile and efficient synthesis of 2,2,2-trifluoroethyl 2-[(E)-N-phenylcinnamamido]-2-phenylacetates in trifluoroethanol via sequential Ugi four-component reaction/esterification
作者:Saeed Balalaie、Hassan Motaghedi、Daryoush Tahmassebi、Morteza Bararjanian、Hamid Reza Bijanzadeh
DOI:10.1016/j.tetlet.2012.08.096
日期:2012.11
We describe an efficient approach for the synthesis of N-substituted 2-alkenylamides in trifluoroethanol via an Ugi 4-component reaction in short reaction times. The use of a catalytic amount of sulfuric acid in trifluoroethanol gave the desired trifluoroethyl derivatives in good to high yields. (C) 2012 Elsevier Ltd. All rights reserved.