反应详情

The reaction system was stirred at room temperature while dropwise adding thionyl chloride through the dropping funnel. In this manner, pentamethyl-t-butyl-disiloxane was reacted with thionyl chloride while dropwise adding the latter and supplying hydrogen chloride gas to the reaction solution. After stirring the reaction solution over 4 hours, it was distilled at 125° C. to give 31.3 g (yield 83.2%) of t-butyldimethylchlorosilane and 21.4 g (yield 79.0%) of trimethylchlorosilane. There was not observed the formation of any viscous oily substance, the distillation temperature during the purification could substantially be decreased and the post-treatment of the reaction vessel was very easy.

1. additionwhile dropwise adding the latter
2. distillationit was distilled at 125° C.