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学科主题: 金属有机化学
题名: Ru-catalyzed asymmetric hydrogenation of alpha-ketoesters with CeCl3 center dot 7H(2)O as additive
其他题名: Ru-catalyzed asymmetric hydrogenation of alpha-ketoesters with CeCl3 center dot 7H(2)O as additive
作者: Sun YH(孙延晖) ; Wan XB(万小兵) ; WANG JIANPING ; MENG QINGHUA ; ZHANG HONGWWEI ; JIANG LJ ; Zhang ZG(张兆国)
通讯作者: 张兆国
刊名: Org. Lett.
发表日期: 2005
卷: 7, 期:24, 页:5425-5427
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所; 上海交通大学
英文摘要: An efficient asymmetric hydrogenation of alpha-ketoesters is reported with use of a catalyst prepared from [Ru((S)-3)(benzene)Cl]Cl and CeCl3-7H(2)O. a-Hydroxy esters are obtained in up to 96% ee. The addition of CeCl3-7H(2)O not only improves the enantioselectivity, but also enhances the stability of the catalyst. As a result, the hydrogenation of methyl benzoylformate affords the product with 92% ee with a substrate/catalyst ratio of 10 000. Hydrolysis of 2 provides the final compound with 83% yield at 99% ee after a single recrystallization from 1,2-dichloroethylene.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000233505700020
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/27613
Appears in Collections:上海有机化学研究所_期刊论文

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Recommended Citation:
Sun YH,Wan XB,WANG JIANPING,et al. Ru-catalyzed asymmetric hydrogenation of alpha-ketoesters with CeCl3 center dot 7H(2)O as additive[J]. Org. Lett.,2005,7(24):5425-5427.
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