Abstract

The nucleophilic addition of the monocarbonyl derivative of the closo-dodecaborate anion [B₁₂H₁₁CO]^– with N- and O-nucleophiles has been studied. This process proceeds under mild conditions in high yield. Not only primary and secondary amines but also tertiary ones can be added. The resulting borylated derivatives are thermally unstable, and the C–O and C–N bonds split upon heating forming the initial [B₁₂H₁₁CO]^– anion. In an acidic medium in aqueous solutions, borylated derivatives hydrolize forming the carboxylate derivative of general formula [B₁₂H₁₁COOH]^–.

中文翻译：

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基于杂十二酸根阴离子的C-硼化酯和酰胺的合成及理化性质

摘要

所述的单羰基衍生物的亲核加成闭合碳-dodecaborate阴离子[B ₁₂ ħ ₁₁ CO] ^-与ñ -和ö -nucleophiles进行了研究。该过程在温和条件下以高收率进行。不仅可以添加伯胺和仲胺，而且可以添加叔胺。生成的硼化衍生物是热不稳定的，加热时C–O和C–N键分裂，形成初始的[B ₁₂ H ₁₁ CO] ^–阴离子。在水溶液中的酸性介质中，硼酸化的衍生物水解形成通式为[B ₁₂ H ₁₁的羧酸酯衍生物COOH] ^–。