Enantioselective epoxidation of isoflavones by Jacobsen's Mn(III)salen catalysts and dimethyldioxirane oxygen-atom source

被引：29
|
作者：
Adam, W
Fell, RT
Lévai, A
Patonay, T
Peters, K
Simon, A
Tóth, G
机构：
[1] Lajos Kossuth Univ, Dept Organ Chem, H-4010 Debrecen, Hungary
[2] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany
[3] Max Planck Inst Festkorperforsch, D-70506 Stuttgart, Germany
[4] Tech Univ Budapest, Inst Gen & Analyt Chem, Hungarian Acad Sci, Tech Analyt Res Grp, H-1111 Budapest, Hungary
来源：
TETRAHEDRON-ASYMMETRY | 1998年 / 9卷 / 07期
基金：
匈牙利科学研究基金会;
关键词：
D O I：
10.1016/S0957-4166(98)00102-5
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The catalytic enantioselective epoxidation of the isoflavones 1a-f has been performed by the Mn(III)salen complexes (R,R)-3 and (S,S)-3 as catalysts and dimethyldioxirane as the oxygen-atom source to afford optically active isoflavone epoxides 2a-f, The absolute configuration of the nonracemic epoxides 2 have been determined by X-ray diffraction analysis. Our present results constitute the first examples of the preparation of optically active isoflavone epoxides. (C) 1998 Elsevier Science Ltd. All rights reserved.
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收藏
页码：1121 / 1124
页数：4
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