KINETICS OF THE CATALYTIC REARRANGEMENT OF ORGANOSILICON PEROXIDES

Kinetics of the rearrangement of bis[(para-substituted phenyl)dimethylsilyl] peroxides in the presence of catalytic amounts of potassium cyanide, potassium and caesium fluorides in isopropyl alcohol have been studied. The peroxide rearrangement proceeds to form aryloxysiloxanes and is first order with respect to both the peroxide and the catalyst. On increasing the catalyst concentration, the intramolecular rearrangement competes with solvolysis of the peroxide at the SiO bond. © 1979.