Patent ID: 7396950

Claim:
A process for production of trialkoxy(dialkylamino) silanes, comprising: a first step which comprises reacting a tetrahalosilane represented by Formula 1 with a tetraalkoxysilane represented by Formula 2 in the mixture of an alcohol composed of the same alkoxy group as that of the tetraalkoxysilane to yield a trialkoxyhalosilane represented by Formula 3, wherein the alcohol is used in an amount of 10-50% by mol based on a total amount of Si in the tetrahalosilane and the tetraalkoxysilane: SiX 4 [Formula 1] (where X denotes halogen) Si(OR 1 ) 4 [Formula 2] (where R 1 denotes a hydrocarbon group having 1-6 carbon atoms) XSi(OR 1 ) 3 [Formula 3] (where X denotes halogen; and R 1 a hydrocarbon group having 1-6 carbon atoms); and and a second step of reacting the trialkoxy halosilane obtained in the first step with a dialkylamine represented by Formula 7 to yield a trialkoxy(dialkylamino) silane represented by Formula 8: R 2 R 3 NH [Formula 7] (where R 2 denotes a hydrocarbon group having 1-12 carbon atoms; and R 3 a hydrocarbon group having 1-12 carbon atoms) R 2 R 3 NSi(OR 1 ) 3 [Formula 8] (where R 1 denotes a hydrocarbon group having 1-6 carbon atoms; R 2 a hydrocarbon group having 1-12 carbon atoms; and R 3 a hydrocarbon group having 1-12 carbon atoms).