Reaction of o-carboranes with sterically demanding N-heterocyclic carbene: Synthesis and structural characterization of 1:1 adducts

Zheng F.; Xie Z.

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Reaction of o-carboranes with sterically demanding N-heterocyclic carbene: Synthesis and structural characterization of 1:1 adducts

机译：邻位碳烷与空间上需要的N-杂环卡宾的反应：1：1加合物的合成和结构表征

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Several nido-carborane-carbene 1:1 adducts were prepared in very high yields from the reaction of o-carboranes with 1,3-bis(2,6-diisopropylphenyl) imidazol-2-ylidene in dry THF at room temperature. Single-crystal X-ray analyses reveal that they are zwitterionic salts consisting of a nido carborane cage and imidazolium moiety that are linked by a five-coordinate boron atom. They are inert toward carbenes, but sensitive toward moisture and water, leading to the formation of deboration products, nido-C _2B _9 ions. These results shed light on the deboration reaction mechanism of o-carboranes.

机译：在室温下，在干燥的THF中，邻氨基甲酮与1,3-双（2,6-二异丙基苯基）咪唑-2-亚烷基的反应可以制备出高产率的几种Nido-carborane-carbene 1：1加合物。 X射线单晶分析表明，它们是两性离子盐，由一个五配位的硼原子连接的一个氨基甲硼烷笼和咪唑鎓部分组成。它们对碳烯呈惰性，但对水分和水敏感，导致形成脱硼产物nido-C _2B _9离子。这些结果揭示了邻氨基甲酸酯的脱硼反应机理。

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《Dalton transactions: An international journal of inorganic chemistry》 |2012年第41期|共8页
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Zheng F.; Xie Z.;
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机译：邻位碳烷与空间上需要的N-杂环卡宾的反应：1：1加合物的合成和结构表征
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Reaction of o-carboranes with sterically demanding N-heterocyclic carbene: Synthesis and structural characterization of 1:1 adducts

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