IMIDAZOLE DERIVATIVES .6. STABLE CARBENE BORANES

被引：133

作者：

KUHN, N ^{[1
]}

HENKEL, G ^{[1
]}

KRATZ, T ^{[1
]}

KREUTZBERG, J ^{[1
]}

BOESE, R ^{[1
]}

MAULITZ, AH ^{[1
]}

机构：

[1] UNIV GESAMTHSCH ESSEN, INST ANORGAN CHEM, D-45117 ESSEN, GERMANY

来源：

CHEMISCHE BERICHTE-RECUEIL | 1993年 / 126卷 / 09期

关键词：

IMIDAZOL-2-YLIDENE-BORANE ADDUCTS; CALCULATIONS; AB-INITIO; BORANE-IMIDAZOL-2-YLIDENE ADDUCTS;

D O I：

10.1002/cber.19931260913

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Stable imidazol-2-ylidene-borane adducts 8 and. 9 are obtained from 1,3,4,5-tetraalkylimidazol-2-ylidenes 7 and Me2S . BH3 or Et2O . BF3. An X-ray structure analysis of 8b has been performed. An ab initio calculation [MP2(fu)/6-31G**] reveals a low energy difference between two rotamers. The bond orders of the cyclic bonds imply only a minor pi interaction between the N-C-N and the C-C fragment.

引用

页码：2041 / 2045

页数：5

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