Patent ID: 7084206

Claim:
A method for preparing phenyl-containing organosilicon intermediates, the method comprising: (I) contacting a phenyl-containing Grignard reagent with a precursor chlorosilane having the general formula R a SiX 4-a wherein each R is independently selected from the phenyl group, the vinyl group, the methyl group, or hydrogen, X is chlorine or bromine and a has a value of 0, 1, or 2; (II) allowing the phenyl-containing Grignard reagent to react with the precursor chlorosilane to form a phenyl-containing organosilicon intermediate, wherein the reaction is carried out in the presence of a solvent comprising the group: (i) a mixture of a dialkyl ether solvent and an aromatic halogenated solvent; (ii) a mixture of a mixture of dialkyl ether solvents and an aromatic halogenated solvent.