Аннотация:A series of mono- and polyfunctional carborane organosilicon derivatives were prepared in good yields based on the hydrosilylation reactions of allylcarboranes with hydride-containing organosilicon compounds such as tetramethyldisiloxane, decamethylpentasiloxane and triethoxysilane in the presence of a Karstedt's catalyst. The functionalization of the double bonds in allylcarboranes proceeded regioselectively in accordance with Farmer's rule providing an efficient access to carborane silicon compounds. It was found for 9-o- and 9-m-allylcarboranes that an excess of Karstedt's catalyst can promote the migration of a double bond in allylcarboranes to form boron-substituted propenyl derivatives, the structure of ortho-isomer was supported by X-ray diffraction analysis.
