B10H14 and PhCHO yield [6-Ph-nido-6-CB9H11]− (94%), from which the nine-vertex C-phenyl monocarbaborane anion [4-Ph-closo-4-CB8H8]− (68%) can be obtained by heating at 200 °C, and from which the twelve- and ten-vertex analogues [1-Ph-closo-1-CB11H11]− (50%) and [4-Ph-closo-4-CB9H9]− (25%) can be obtained by heating at 210 °C with BH3(NEt3).
Monocarbaborane anion chemistry. The elusive C-arylated [PhCB11H11]−, [PhCB9H9]− and [PhCB8H8]− anions
T. B. src="https://www.rsc.org/images/entities/char_0073_0306.gif" A. W. C. B. xmlns="http://www.rsc.org/schema/rscart38" /. Jelínek, C. A. Kilner, M. Thornton-Pett and J. D. Kennedy, Chem. Commun., 2001, 1790 DOI: 10.1039/B105645J
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Jelínek
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