An efficient method to synthesize chlorosilanes from hydrosilanes
2014
Abstract An efficient, highly selective and productive synthesis of chlorosilanes from hydrosilanes is reported. Ceramic spheres were added to chlorination reaction systems and found to greatly increase the efficiency and yields of the reactions. PhSiH 2 Cl, PhSiHCl 2 , PhSiCl 3 , Ph 2 SiHCl, Ph 2 SiCl 2 , PhMeSiHCl and PhMeSiCl 2 were synthesized from the corresponding hydrosilanes in only a few hours with yields that typically exceeded 90%. This is the first time PhSiCl 3 , Ph 2 SiHCl, Ph 2 SiCl 2 and PhMeSiCl 2 have been synthesized by this method. The factors that affect the rate of the chlorination reaction were studied. In addition the rate constant, reaction order and apparent activation energy of the chlorination reaction were also determined by kinetics study. The reaction was found to have an induction period.
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