Synthesis of dihalo derivatives of the 7,8-dimethyldecahydro-7,8-dicarba-nido-undecaborate anion |
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Authors: | D. A. Rudakov V. I. Potkin E. A. Dikusar P. V. Petrovskii I. B. Sivaev V. I. Bregadze |
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Affiliation: | (1) Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 ul. Surganova, 220072 Minsk, Belarus;(2) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation |
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Abstract: | Treatment of potassium 7,8-dimethyldecahydro-7,8-dicarba-nido-undecaborate with N-chloro-and N-bromosuccinimides in acetonitrile or with an excess of iodine in methanol gave the corresponding dihalo derivatives [9,11-X2-7,8-Me2-7,8-C2B9H8]− (X = Cl, Br, or I), which were isolated as alkylammonium salts. The compound (Me3NH)+[9,11-I2-7-Me-7,8-C2B9H9]− was synthesized by a reaction of K+[7-Me-7,8-C2B9H11]− with an excess of iodine in methanol. The compounds obtained were characterized by IR and NMR (1H, 11B, and 11B-11B COSY) spectroscopy. Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 888–891, May, 2007. |
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Keywords: | carboranes 7,8-dimethyldecahydro-7,8-dicarba-nido-undecaborate halogenation NMR spectroscopy |
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