CHLOROAKDENYLSILANES AND ITS METHOD OF PREPARATION

摘要

Chloroalkenyl silane of formula (I) is prepared by reacting the mixed gas of the cpd. of formula (II) and the cpd. of formula (III) with the metalic silica at 250-350 ≦̸C, under 1-5 atms. In the formulas, R1 is H, CH3, SiHCl2, SiCl3 or CH2SiCl3; R2 is H or Cl; R3 is H or Cl; R4 is H, CH3 or chloromethyl; R5 is H or C1-4 lower alkyl or CH2CH2Cl. Pref. opt. 1-50% of the acidic whitee earth of spherical micro powder is added in the amt. of 1-50% w.r.t. the amt. of the silica; and copper or copper cpd. as a catalyst is used in 1-20 wt.% w.r.t. the reactant.