A novel and facile synthesis of 2,3-dihydrofuran derivatives containing trifluoromethyl group
摘要:
A series of CF3-containing 2,3-dihydrofuran derivatives were prepared via the reaction of arsonium bromides 1 with beta,beta-di(trifluoroacetyl)ethylene derivatives 2 in the presence of K2CO3, usually in a stereoselective manner with moderate yields. The structures of these compounds were confirmed by H-1 NMR, C-13 NMR, IR, MS and HRMS as well. (c) 2006 Elsevier B.V. All rights reserved.