Abstract A very convenient route to bromomethyl-substituted organodisilanes involving reaction of the corresponding (methoxymethyl) disilanes with triphenyldibromophoshporane is described.(Iodomethyl) disilanes were best prepared by treatment of the (bromomethyl) disilanes with sodium iodide in acetone, although they coulc be made by the action of phosphoric acid and potassium iodide on the (methoxymethyl) disilanes, with yields and ...