Abstract

The interaction of the monocarbonyl derivative of the closo-decaborate anion [2-B₁₀H₉CO]^– with O-nucleophiles has been considered. It has been found that primary, secondary, and tertiary alcohols can enter the addition reaction. It has been shown that the C–O bond is extremely labile in the obtained closo-borate derivatives of the general formula [2-B₁₀H₉COOR]^2–, and upon heating, its cleavage occurs to form the starting [2-B₁₀H₉CO]^–. In acidic aqueous solutions, hydrolysis of borylated esters occurs to form a carboxylate derivative of the general formula [2-B₁₀H₉COOH]^2–. All the derivatives obtained have been isolated and characterized by IR as well as ¹H, ¹¹B, and ¹³C NMR spectroscopies.

中文翻译：

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梭菌-消灭性阴离子的C-硼化酯的合成及理化性质

摘要

所述的单羰基衍生物的相互作用闭合碳-decaborate阴离子[2-B ₁₀ ħ ₉ CO] ^-与ö -nucleophiles已经考虑。已经发现伯，仲和叔醇可以进入加成反应。已经显示的是，C-O键是在所获得的极不稳定的闭合碳通式[2-B的硼酸盐衍生物₁₀ ħ ₉ COOR] ^2-，和在加热时，会发生解理，以形成起始[2- B ₁₀ H ₉ CO] ^–。在酸性水溶液中，硼酸酯化反应发生水解，形成通式[2-B ₁₀ H ₉ COOH] ^2–的羧酸酯衍生物。已分离所有获得的衍生物，并通过IR以及¹ H，¹¹ B和¹³ C NMR光谱进行了表征。