Carboranes synthesis

They have also demonstrated a reversible photochemical conversion from a tridentate to a bidentate B3H8 (Fig. 14). Fehlner has achieved a photochemical carborane synthesis by irradiating mixtures of B4H8Fe(CO)3 and dimethylacetylene. Products of the reactions include (CH3)4C4B4H4 and (CH3)8C8B4H4. Leyden and co-workers have observed two examples of metalloborane isomerization reactions initiated by light ... 

Macropolyhedral azaboranes, preparation, 3, 121 Macropolyhedral carboranes, synthesis and characteristics, 3, 101... 

Poly(bis-alkoxysilylene)s, preferential screw sense, 3, 617 Polyboranes, in subicosahedral and icosahedral carborane synthesis... 

Novel Organic Derivatives of Carboranes Synthesis and Chemical Properties... 

Wilczynski, R. Sneddon, L. G. Transition-metal-promoted Reactions of Boron Hydrides. 3. (R2C2)Co2(CO)6-catalyzed Reactions of Alkynes and Small Carboranes Synthesis of Boron-substituted Alkenylcarboranes. Inorg. Chem. 1982,21, 506-514. 

Lebedev, V. N., Balagurova, E. V., Polyakov, A. V. et al. 1990. Selective fluorination of o- and m-carboranes. Synthesis of 9-monofluoro-, 9,12-difluoro-l,8,9,12-trifluoro-, and 8,9,10,12-tetrafluoro-o-carboranes and 9-monofluoro-, and 9,10-difluoro-m-carboranes. Molecular structure of 8,9,10,12-tetrafluoro-o-car-borane. J. Organomet. Chem., 385, 307-18. 

Zheng, Z., Jiang, W, Zinn, A. A., Knobler, C. B., and Hawthorne, M. R 1995. Facile electrophilic iodination of icosahedral carboranes. Synthesis of carborane derivatives with boron-carbon bonds via the palladium-catalyzed reaction of diiodocarboranes with Grignard reagents. Inorg. Chem., 34, 2095-100. 

Aside from their extensive use in metaHacarborane chemistry, the dicarboUide anions are important intermediates in the synthesis of other carborane compounds. For example, aqueous ferric chloride oxidation of the 1 anion results in the 10-vertex cage nido- b ()-(Z, 2 (H8) and the... 

Synthesis and properties of carborane-containing organophosphorus compounds 97UK1125. 

Metal-vapor synthesis also prepares metallaboranes and metallacarboranes with oxidation of the metal. Thermally generated Ni, Co and Fe atoms react with the nido-carborane 2,6-C2B7H, and either cyclopentadiene, toluene, mesitylene, or... 

The original synthesis of metallacarborancs is effected by deprotonation of nido-carborane anions in a manner like that employed to prepare ferrocene, e.g. ... 

Wade and Williams have reported the synthesis of a carborane-based analog of polyi/t-phenylene).122 The rodlike polymer (91) (Fig. 55) was prepared by the catalytic... 

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