(η5-Triphenylindenyl)Ru(CO)2Cl:: A new ruthenium catalyst for the highly efficient racemization of chiral 1-phenylethanol at room temperature

被引：22

作者：

Xi, Q

Zhang, WC

Zhang, XM ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[2] Wuhan Inst Chem Technol, Sch Chem Engn & Pharm, Wuhan, Peoples R China

来源：

SYNLETT | 2006年 / 06期

关键词：

organometallic reagents; ruthenium; complexes; catalysis; racemization;

D O I：

10.1055/s-2006-939038

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

lA new ruthenium complex, (eta(5)-triphenylindenyl)RU(CO)(2)Cl, was synthesized and successfully applied in the racernization of (S)-l-phenylethanol at room temperature. Instead of potassium tert-butoxide, stronger bases such as sodium hydride and n-butyllithium were used to activate the precatalyst. In situ NMR experiments revealed the presence of ruthenium hydride as a key intemediate in the catalytic cycle.

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页码：945 / 947

页数：3

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