| 摘要 |
PURPOSE:To obtain the titled compound useful as a specific silica agent effective for the synthesis of steroid, etc., easily and economically in an industrial scale, by reacting a Grignard reagent having tertiary hydrocarbon group with a specific silicon compound. CONSTITUTION:The objective compound can be prepared by reacting the Grignard reagent of formula R<1>MgX (R<1> is tertiary hydrocarbon group; X is halogen) (e.g. t-butyl magnesium chloride) with the silicon compound of formula X2 R<2>SiSiR<3>X2 (R<2> and R<3> are univalent hydrocarbon group or halogen; X is halogen) (e.g. hexachlorodisilane), in an inert organic solvent such as THF, preferably at 40-100 deg.C. The reaction is preferably carried out in an inert gas atmosphere to prevent the lowering of the yield of the objective compound.
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