Enantioselective Diels-Alder reactions catalyzed by samarium iodo binaphthoxides

被引：19

作者：

Giuseppone, N

Santos, I

Collin, J

机构：

[1] Univ Paris 11, Lab Catalyse Mol, UPRESA 8075, ICMO, F-91405 Orsay, France

[2] ITN, Dept Quim, P-2688 Sacavem, Portugal

来源：

TETRAHEDRON LETTERS | 2000年 / 41卷 / 05期

关键词：

samarium; catalysis; Diels-Alder reactions; chirality; binaphthol;

D O I：

10.1016/S0040-4039(99)02128-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Two trivalent samarium iodo binaphthoxide complexes have been investigated as catalysts for enantioselective Diels-Alder reactions. Enantiomeric excesses were improved using 3,3'-bis-orthoanisyl binaphthol as ligand compared to binaphthol, with values up to 81% for the major endo-isomer. Performing reactions at different temperatures gave a reversal in the prevailing product configuration. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：639 / 642

页数：4

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