Abstract Dichloro (methyl)(vinyl) silane reacts with DMSO in the presence of octamethyltrisiloxane to form cyclooligomethyl (vinyl) siloxanes (MeViSiO) n (n= 3-6). The reaction involves disproportionation of octamethyltrisiloxane into hexamethyldisiloxane and decamethyltetrasiloxane. Along with the latter two products, insertion products of methyl vinyl silanone into both permethyloligosiloxanes were identified. Alkyltrichlorosilanes ...
