BMPD, a novel C2-chiral 1,3-diketone ligand;: Synthesis and application to an asymmetric catalytic reaction

被引:40
作者
Abiko, A [1 ]
Wang, GQ [1 ]
机构
[1] Kyoto Inst Technol, Venture Lab, Sakyo Ku, Kyoto 6068585, Japan
关键词
D O I
10.1016/S0040-4020(98)00695-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of BMPD, 1,3-bis(2-methylferrocenyl)propane-1,3-dione, was achieved via the Claisen condensation of a homochiral ferrocenecarboxylate and an acetylferrocene derived from the same chiral formylferrocene. Several metal complexes were prepared to exemplify the complexation ability of BMPD. A BMPD-yttrium complex was found to act as a new catalyst for silylcyanation of aldehydes with remarkable efficiency. As little as 0.2 mol% of the complex catalyzed the reaction of benzaldehyde and cyanotrimethylsilane to afford the cyanohydrin in 95% yield with 87% ee. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:11405 / 11420
页数:16
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