Acylation of [B12H12]2− dianion by carboxylic acid halides |
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| Authors: | A. A. Semioshkin P. V. Petrovskii D. Gabel B. Brellochs V. I. Bregadze |
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| Affiliation: | (1) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813 Moscow, Russian Federation;(2) Faculty of Chemistry, University of Bremen, Leobener Str., PO Box 330440, 28334 Bremen, Germany |
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| Abstract: | The sodium salt of [B12H12]2− dianion reacts with carboxylic acid halides to give a mixture of B-acylated product [B12H11COR]2− and an unstable intermediate, the latter undergoing hydrolysis to form [B12H11OH]2−. The ratio of the products formed depends on the nature of the radical R. The reaction mechanism was studied by NMR spectroscopy. A number of novel [B12H11COR]2− compounds were synthesized; their structures were confirmed by NMR and IR spectral data. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 980–985, May, 1998. |
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| Keywords: | dodecahydro-closo-dodecaborate, dianion, acylation by carboxylic acid halides acylundecahydro-closo-dodecaborates,1H,13C, and11B NMR spectra |
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