New trifunctional carbosilanes containing hydroxy, alkenyl, chloro and
cyano groups have been synthesized in good yields. A useful synthesis
of these polymer precursors from dichlorosilanes was developed after
it was found that hydrosilation of functionalized alkenes by a dihydro
silane, 2-cyanoethylmethyldihydrosilane, failed to give the expected d
ialkylsilanes.