期刊
TETRAHEDRON
卷 63, 期 16, 页码 3380-3388出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.02.022
关键词
asymmetric synthesis; Staudinger reaction; ketenes; imines; azetidinones
Highly diastereoselective synthesis of cis-beta-lactams via [2+2] cycloaddition reactions of imines derived from a chiral bicyclic aldehyde and ketenes is described. The chiral bicyclic aldehyde as well as chiral acids were prepared from commercially available inexpensive isosorbide. The cycloaddition reaction was found to be highly diastereoselective; in some cases giving a single diastereomer of cis-azetidin-2one in very good yields. A moderate diastereoselectivity was observed with chiral ketenes derived from isosorbide. (c) 2007 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据