SYNTHESIS AND CHEMISTRY OF BIS(BORYLPHOSPHINO)SILANES AND -GERMANES

The reactions of Me2SiCl2 ,P h 2SiCl2, and Ph2GeCl2 with LiP(H)B(N i Pr2)2 in a 1:2 ratio and the reaction of Ph2SiCl2 with LiP(H)B(N i Pr2)[N(SiMe3)2] in a 1:2 ratio give good yields of the respective diphosphinosilanes, Me 2Si[P(H)B(N i Pr2)2]2 ,P h 2Si[P(H)B(N i Pr2)2]2 ,P h 2Ge[P(H)B(N i Pr2)2]2, and Ph2Si[P(H)B(N i Pr2)[N(SiMe3)2]]2. These