Mesomeric betaine - N-heterocyclic carbene interconversions of 1,2,4-triazolium-phenolates. Sulfur, selenium, and borane adduct formation

被引：33

作者：

Liu, Ming ^{[1
]}

Nieger, Martin ^{[2
]}

Schmidt, Andreas ^{[1
]}

机构：

[1] Tech Univ Clausthal, Inst Organ Chem, D-38678 Clausthal Zellerfeld, Germany

[2] Univ Helsinki, Dept Chem, Inorgan Chem Lab, FIN-00014 Helsinki, Finland

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 03期

关键词：

NUCLEOPHILIC CARBENES; COMPLEXES; YLIDES; CHEMISTRY; DECARBOXYLATION; IMIDAZOLIUM; PRECURSORS; GENERATION; CONVERSION; INDAZOLE;

D O I：

10.1039/c4cc08032g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The conjugated mesomeric betaines 2-(1-phenyl-4H-1,2,4-triazolium-4-yl)phenolates are masked N-heterocyclic carbenes of 1,2,4-triazole which can be trapped as thiones and selenones. Reaction with triethylborane and triphenylborane resulted in the formation of first representatives of a new zwitterionic heterocyclic ring system, benzo[e]1,2,4-triazolo[3,4-c][1,4,2]oxazaborinium-4-ide, as a formal trapping product of an anionic N-heterocyclic carbene.

引用

页码：477 / 479

页数：3

共 35 条

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