SYNTHESIS AND CHEMICAL-PROPERTIES OF 1,3-DICHLORO-1,3-DIHYDRIDODISILAZANES

A trans-silylation route to 1,3-dichloro-1,3-dihydridodisilazanes, a novel class of polyfunctional disilazane, is described. Thus, heating hexamethyl- or heptamethyl-disilazane under reflux in the presence of an excess of dichlorohydrogenosilane R(1)SiHCl(2), led to compounds of formula (R(1)ClHSi)(2)NR(2)(R(1) = Me, Et, Vi or Ph and R(2) = H; R(1) = Me and R(2) = Me) in high yield. The exchange of chlorinated organosilicon moieties was strongly facilited by a catalytic amount of((n)Bu(4)N)F. Interpretation of the results and a few chemical properties of these novel disilazanes are reported.