Cyclopropenium ion catalysed Beckmann rearrangement

被引：74

作者：

Srivastava, Vishnu P. ^{[1
]}

Patel, Rajesh ^{[1
]}

Garima ^{[1
]}

Yadav, Lal Dhar S. ^{[1
]}

机构：

[1] Univ Allahabad, Dept Chem, Allahabad 211002, Uttar Pradesh, India

来源：

CHEMICAL COMMUNICATIONS | 2010年 / 46卷 / 31期

关键词：

CYANURIC CHLORIDE; MILD; KETOXIMES; LACTAMS; CATIONS; AMIDES; ACID;

D O I：

10.1039/c0cc00815j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

1-Chloro-2,3-diphenylcyclopropenium ion was found to be a very efficient organocatalyst (3 mol% loading) for liquid phase Beckmann rearrangement of various ketoximes to the corresponding amides/lactams within 2 h in acetonitrile at reflux temperature. This is the first example of the application of the cyclopropenium ion as a catalyst, which opens up a new aspect of the synthetic utility of aromatic cation based catalysis.

引用

页码：5808 / 5810

页数：3

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