cyclo-Boratrisiloxane and cyclo-diboratetrasiloxane derivatives and their reactions with amines: crystal and molecular structure of (p-BrC6H4BO)2(Ph2SiO)2
作者:Michael A. Beckett、David E. Hibbs、Michael B. Hursthouse、K.M.Abdul Malik、Paul Owen、K.Sukumar Varma
DOI:10.1016/s0022-328x(99)00631-2
日期:2000.2
new cyclo-diboratetrasiloxanes (RBO)2(R′2SiO)2 (R=p-BrC6H4, o-MeC6H4, m-NH2C6H4, m-NO2C6H4, Bun; R′2=Ph2, R=Ph, p-BrC6H4, m-NO2C6H4; R′2=octn/Me) and cyclo-boratrisiloxanes (RBO)(R′2SiO)2 (R=p-BrC6H4, m-NH2C6H4; R′2=Me2, Ph/Me) were prepared in high yield by condensation reactions. cyclo-Diboratetrasiloxane·amine adducts (1:1) were obtained for (PhBO)2(Ph2SiO)2 with cyclohexylamine, triethylamine,