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.

Abstract: A hydrosilation process where a siloxyhydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from a group consisting of acetylenic alcohols and acetylenic ethers. The accelerators are especially useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an aldehyde accelerator. The aldehyde accelerators are especially useful for facilitating the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.

Abstract: A process for reacting organodisilanes with organic halides to form monosilanes. The process comprises heating a mixture comprising an organodisilane and an organic halide at a temperature within a range of about 100.degree. C. to 350.degree. C. The process is especially useful for reacting alkenyl chlorides, such as allyl chloride, with organodisilanes to form organomonosilanes having alkenyl substitution. The process is also useful for converting a high-boiling organodisilane containing fraction from a direct process for forming organosilanes into more useful monosilanes.

Abstract: A one-step process for the preparation of organodisilanes. The process comprises contacting magnesium metal with a mixture comprising diethylene glycol dibutyl ether, an organic halide, and a halodisilane at a temperature within a range of about 0.degree. C. to 250.degree. C. The process provides a high yield of organodisilane product that is easily recoverable. The present process is especially useful for converting halodisilanes in a high-boiling mixture resulting from the direct process for making organosilane monomers into hexaorganodisilanes.

Abstract: A one-step process for preparation of organosilanes. The process comprises contacting magnesium metal with a mixture comprising an organic halide and a halosilane in a co-solvent comprising about one to 15 moles of a dialkyl ether comprising less than seven carbon atoms, per mole of the allyl chloride; and about 0.05 to less than two moles of a liquid aromatic hydrocarbon solvent per mole of the dialkyl ether; at a temperature within a range of about 5.degree. C. to 200.degree. C.

Abstract: A process for making .beta.-alkenyltrimethylsilanes and trimethylsilyl carboxylates. The process comprises contacting a mixture comprising hexamethyldisilane and an alkene carboxylate having a .beta.-unsaturated carbon atom with novel organo-palladium and organo-nickel complexes, as catalysts, at a temperature within a range of about 100.degree. C. to 250.degree. C. The present process is especially useful for making allyltrimethylsilane and trimethylsilyl acetate.

Abstract: A process for reacting organic halides with disilanes to form monosilanes. The process uses disubstituted palladium compounds as catalysts. The process is especially useful for reacting alkenyl chlorides, such as allyl chloride, with disilanes to form monosilanes having alkenyl substitution. The process is also useful for converting the high-boiling disilane containing fraction resulting from the direct process for forming organosilanes into more useful monosilanes.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from a group consisting of ene-yne unsaturated compounds. The accelerators are especially useful for facilitating the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from a group consisting of unsaturated secondary and tertiary alcohols and silated unsaturated secondary and tertiary alcohols. The accelerators are especially useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene. The accelerators are believed to be effective in the presence or absence of oxygen.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from a group consisting of tertiary alcohols, silated tertiary alcohols, benzyl alcohol, and silated benzyl alcohol. The accelerators are especially useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene. The accelerators are believed to be effective in the presence or absence of oxygen.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an accelerator selected from a group consisting of acetylenic alcohols, silated acetylenic alcohols, and acetylenic ethers. The accelerators are especially useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene. The unsaturated ketone accelerators are effective in the presence or absence of oxygen.

Abstract: A hydrosilation process where a silicon hydride is reacted with an unsaturated reactant in the presence of a platinum catalyst and an unsaturated ketone accelerator. The described unsaturated ketone accelerators are especially useful for the hydrosilation of unsaturated reactants where the unsaturation is in the internal portion of the reactant's structure, for example, as in cyclopentene and cyclohexene. The unsaturated ketone accelerators are effective in the absence of oxygen activation of the platinum catalyst and are synergetic with oxygen activation of platinum catalyst.

Abstract: A process for the organooxylation of chlorosilanes. The process comprises contacting in a film a chlorosilane and an alcohol capable of forming an ester with the silicon of the chlorosilane and thereby forming an equilibrium mixture comprising an organooxysilane and hydrogen chloride. The film is heated at a temperature sufficient to cause vaporization of the hydrogen chloride from the equilibrium mixture thereby increasing the yield of organooxysilane in the equilibrium mixture. In a preferred process, the process is run in a falling-film type reactor or a wiped-film type reactor.

Abstract: A process for the organooxylation of .beta.-cyanoalkylchlorosilanes. The process comprises contacting in a film a .beta.-cyanoalkylchlorosilane with an alcohol capable of forming an ester with the silicon of the .beta.-cyanoalkylchlorosilane and thereby forming an equilibrium mixture comprising a (.beta.-cyanoalkyl)organooxysilane and hydrogen chloride. The film is heated at a temperature sufficient to cause vaporization of the hydrogen chloride from the equilibrium mixture thereby increasing yield of (.beta.-cyanoalkyl)organooxysilane in the equilibrium mixture. In a preferred process, the process is run in a falling-film type reactor or a wiped-film type reactor.

Abstract: A process for the preparation of hydrolyzable beta-cyanoalkylsilanes. More particularly, this invention relates to the catalytic addition of silicon hydrides to alpha,beta-unsaturated olefinic nitriles to form beta-cyanoalkylsilanes. The present invention employs tertiary and quaternary amino ion exchange resins as a catalyst.

Abstract: A method for maintaining catalytic activity during a hydrosilylation reaction between a silicon hydride and an unsaturated compound is disclosed. The method comprises reacting a silicon hydride and an unsaturated compound in the presence of a platinum catalyst wherein a peroxide is added into the reaction mixture to maintain the catalytic activity of the platinum catalyst.

Abstract: A process for the preparation of hydrolyzable .beta.-cyanoalkylsilanes. More particularly, this invention relates to the catalytic addition of silicon hydrides to .alpha.,.beta.-unsaturated olefinic nitriles to form .beta.-cyanoalkylsilanes. The present invention uses an organic resin supported triorganophosphine, an organic resin supported triorganophosphine oxide, or triorganophosphine oxide as a catalyst.

Abstract: A process for the preparation of hydrolyzable beta-cyanoalkylsilanes. More particularly, this invention relates to the catalytic addition of silicon hydrides to .alpha.,.beta.-unsaturated olefinic nitriles to form .beta.-cyanoalkylsilanes. The present invention employs tetraalkylammonium halide supported on silica gel as a catalyst.

Abstract: A process for the preparation of hydrolyzable .beta.-cyanoalkylsilanes. More particularly, this invention relates to the catalytic addition of silicon hydrides to .alpha.,.beta.-unsaturated olefinic nitriles to form .beta.-cyanoalkylsilanes. The present invention employs a divinylbenzene/4-vinylpyridine copolymer based resin as catalyst.