An air stable carbene and mixed carbene "dimers"

被引：298

作者：

Arduengo, AJ ^{[1
]}

Davidson, F ^{[1
]}

Dias, HVR ^{[1
]}

Goerlich, JR ^{[1
]}

Khasnis, D ^{[1
]}

Marshall, WJ ^{[1
]}

Prakasha, TK ^{[1
]}

机构：

[1] DuPont Sci & Engn Lab, Expt Stn, Wilmington, DE 19880 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1997年 / 119卷 / 52期

关键词：

D O I：

10.1021/ja973241o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The air-stable crystalline carbene 1,3-dimesityl-4,5-dichloroimidazol-2-ylidene (2) is produced from the chlorination of 1,3-dimesityimidazol-2-ylidene (1) by 2 equiv of carbon tetrachloride. The physical and spectroscopic properties of the carbene are reported. The features which contribute to the exceptional stability of the carbene are discussed. Further reaction of 2 with carbon tetrachloride leads to reduction of CCl4 to dichlorocarbene. The formation of the mixed carbene "dimers" (olefins) from in situ generated dichlorocarbene and various imidazol(in)-2-ylidenes is also reported. The tellurones derived from 1 and 2 are synthesized and compared.

引用

页码：12742 / 12749

页数：8

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