Process for the chlorodephenylation of phenyldisilanes

Details Process for the chlorodephenylation of phenyldisilanes Process for the chlorodephenylation of phenyldisilanes

C - Chemistry, Metallurgy

07

F

260/448.1

C07F 7/12 (2006.01)

Patent

CA 1327372

A PROCESS FOR THE CHLORODEPHENYLATION OF PHENYLDISILANES ABSTRACT A process for the chlorodephenylation of a phenyl- containing disilane to produce alkylhalodisilanes is described. The process comprises (A) adding an aluminum halide, AlX3, to a phenyl-containing disilane, having the formula, R3-a(C6H5)aSiSiR3-b(C6H5)b, wherein the phenyl- containing disilane has a melting point lower than about 50°C.; and the aluminum halide is added to a concentration greater than about 1 mole percent relative to the phenyl- containing disilane; (B) contacting the phenyl-containing disilane and the aluminum halide, in the absence of a solvent, with excess anhydrous hydrogen halide gas at a temperature less than about 50°C.; (C) facilitating conversion of the phenyl-containing disilane to the alkyl- halodisilane; and (D) isolating and recovering the alkyl- halodisilane.

584698

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