期刊
TETRAHEDRON
卷 63, 期 50, 页码 12317-12323出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.09.073
关键词
Mannich reaction; imines; aldehydes; silicon tetrachloride; nucleophilic addition; diastereoselectivity
SiCl4 is an efficient and selective catalyst for the vinylogous Mannich reaction of linear and cyclic synthetic equivalents of acetoacetate dianion, leading to delta-amino-beta-ketoesters in moderate to high yields and complete gamma-selectivity; anti-diastereoselectivity was observed by using a gamma-methyl-substituted cyclic silyloxydiene. (c) 2007 Elsevier Ltd. All rights reserved.
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