Reaction of N-[chloro(methylvinyl)silyl]-, N-[chloro(methylphenyl)silyl]anilines and of N-[chloro-(methylvinyl)silyl]-, N-[chloro(methylphenyl)silyl]-N-methylanilines with isopropylamine and isopropanolyielding the products of chlorine substitution with isopropoxy and isopropylamino group, respectively, has been studied. Structure of new polyfunctional silanes has been confirmed by IR and NMR spectroscopy.