Stereoselective synthesis of highly substituted trans-2,3-dihydrofuran and trans-1,2-cyclopropane derivatives containing sulfonyl groups
作者:Weiguo Cao、Hui Zhang、Jie Chen、Xiaohong Zhou、Min Shao、Mark C. McMills
DOI:10.1016/j.tet.2007.10.073
日期:2008.1
trans-2,3-Dihydrofuran derivatives 3 and trans-1,2-cyclopropane derivatives 4 were prepared with high chemoselectivity and moderate overall chemical yield by the reaction of alpha,beta-unsaturated sulfones 1 with arsonium bromides 2 in the presence of potassium carbonate. The structures of products obtained were identified by IR, MS, (1)H NMR, elemental analysis, and X-ray diffraction analysis. (c) 2007 Elsevier Ltd. All rights reserved.