Reactivity of ketenes in matrices. Direct observation of ketene-pyridine ylides

被引：62

作者：

Qiao, GGH ^{[1
]}

Andraos, J ^{[1
]}

Wentrup, C ^{[1
]}

机构：

[1] JAMES COOK UNIV N QUEENSLAND,DEPT CHEM,BRISBANE,QLD 4072,AUSTRALIA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1996年 / 118卷 / 24期

关键词：

D O I：

10.1021/ja9607190

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ketenes 7, 14, and 17 have been generated in pyridine matrices and observed by infrared spectroscopy to react with pyridine at temperatures between 15 and 50 K to form ketene-pyridine ylides 12, 15, and 18. Azaheterocyclic ketenes 20, 23, and 26 dimerize or tetramerize at ca. 50 K, whereby one ketene molecule acts as a nucleophile toward the other, forming a transient ketene-imine ylide.

引用

页码：5634 / 5638

页数：5

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