The Disproportionation of Dimethyldialkoxysilanes Catalyzed by Iodine Monobromide

Article abstract of DOI:10.1246/bcsj.54.3235

Iodine monobromide is an extremely effective catalyst for the redistribution of alkoxyl groups on silicon atoms in dimethyldialkoxysilanes.The equilibrium constants of these reactions were determined at 40 deg C by means of gas chromatography.Assuming that the reaction intermediate is the dative form of a dimethyldialkoxysilaneiodine monobromide complex, a mechanism of the reaction was proposed.