ASYMMETRIC CYCLOPROPANATION OF ALKENES CATALYZED BY A RHODIUM CHIRAL FORTRESS PORPHYRIN

被引：90

作者：

OMALLEY, S ^{[1
]}

KODADEK, T ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT CHEM & BIOCHEM,AUSTIN,TX 78712

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 06期

关键词：

D O I：

10.1021/om00042a052

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

While a number of efficient asymmetric catalysts exist for the cyclopropanation of alkenes by diazo esters, all provide diastereomeric mixtures in which the anti product predominantes. We report here the synthesis and characterization of a chiral rhodium porphyrin catalyst that provides predominantly the syn isomers, with very good diastereoselectivity in some cases. However, the enantioselectivities observed are modest.

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页码：2299 / 2302

页数：4

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