Method for preparation of allylsilanes
AssigneeDow Corning Corporation
InventorsHoward M. Bank, Sean P. Davern, Binh T. Nguyen
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Abstract
A method for the preparation of allylsilanes. The method comprises contacting magnesium metal with a mixture comprising diethylene glycol dibutyl ether, allyl halide, and a halosilane at a temperature within a range of about 5.degree. C. to 20.degree. C. The method provides a high yield of allylsilane product that is easily recoverable and also provides for high ratios of allylsilane to hexadiene by-product.
Claims14
A method for preparation of allylsilanes, the method comprising contacting magnesium metal with a mixture comprising diethylene glycol dibutyl ether, allyl halide, and a halosilane described by formula
- Me.sub.a H.sub.b SiX.sub.4-a-b,
- where Me is methyl, X is a halogen selected from a group consisting of chlorine and bromine, a=0 to 3, b=0 or 1, and a+b=1 to 3, at a temperature within a range of about 5.degree. C. to 200.degree. C.
A one step method for preparation of allylsilanes, the method comprising contacting magnesium metal with a mixture comprising allyl chloride, one to five moles of diethylene glycol dibutyl ether per mole of allyl chloride, and a halosilane selected from a group consisting of trimethylchlorosilane, dimethylchlorosilane, methyldichlorosilane, dimethyldichlorosilane, and methyltrichlorosilane, where the mole ratio of allyl chloride to halosilane is within a range of about 0.8 to three, at a temperature within a range of about 30.degree. C. to 170.degree. C.
Dependencies are inferred from the claim text.