期刊
TETRAHEDRON
卷 63, 期 32, 页码 7612-7616出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.05.039
关键词
1,2-allenylic sulfones; bromine; bromohydroxylation; mechanistic study
The reaction of 1,2-allenyl sulfones with Br-2 afforded E-bromohydroxylation- or E-bromination-elimination products highly regio-and stereoselectively depending on the substitution pattern of the allene functionality. The five-membered intermediate cis-3h was isolated and characterized by X-ray diffraction study. The study on its reactivity of this intermediate revealed the origin of the regio-and stereoselectivity of this reaction. (C) 2007 Published by Elsevier Ltd.
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