Catalytic asymmetric intramolecular aminopalladation: Improved palladium(II) catalysts

被引：44

作者：

Kirsch, SF ^{[1
]}

Overman, LE ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2005年 / 70卷 / 07期

关键词：

D O I：

10.1021/jo047763f

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Cobalt oxazoline palladacyclic (COP) complex 4 containing acetate as a bridging ligand is an excellent catalyst for asymmetric intramolecular aminopalladation to synthesize 4-vinyloxazolidin-2-ones in 91-98% ee. In contrast to previously reported Pd(II) catalysts, COP-OAc (4) promotes the asymmetric cyclization of (Z)-allylic N-tosylcarbamates without prior activation by silver salts.

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页码：2859 / 2861

页数：3

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