COBALT(II) CATALYZED REACTION OF ALKENES WITH ALIPHATIC-ALDEHYDES AND MOLECULAR-OXYGEN - SCOPE AND MECHANISM

被引：39

作者：

BHATIA, S ^{[1
]}

PUNNIYAMURTHY, T ^{[1
]}

BHATIA, B ^{[1
]}

IQBAL, J ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT CHEM,KANPUR 208016,UTTAR PRADESH,INDIA

来源：

TETRAHEDRON | 1993年 / 49卷 / 27期

关键词：

D O I：

10.1016/S0040-4020(01)87194-5

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A variety of cobalt(II) complexes can be prepared using Schiff's bases derived from aromatic aldehydes and amines or alpha-aminoesters. These complexes are versatile catalyst for the reaction between aliphatic aldehydes and various alkenes- The outcome of the reaction is controlled by the electronic nature of the alkene as the electron deficient alkenes undergo oxidative addition of aldehydes followed by dioxygen incorporation to yield 2-hydroxy(acyloxy)-4-oxoesters or nitriles whereas unactivated or electron rich alkenes afford the corresponding epoxides. These reactions are proceeding via a radical pathway and a common acylcobalt intermediate is proposed for the formation of 4 as well as the epoxides 7.

引用

页码：6101 / 6122

页数：22

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