Organosilyl- and silylorgano-pentaboranes: monocarbahexaboranes from 2-[(chlorodimethylsilyl)methyl]pentaborane(9)
作者:John B. Leach、Gerald Oates、Judith B. Handley、Alexander P. Fung、Thomas Onak
DOI:10.1039/dt9770000819
日期:——
Bridge and terminally substituted pentaborane(9) derivatives of the type [(ClCH2)Me2Si] B5H8, have been prepared. Rearrangement of both the 1- and 2-terminally substituted pentaboranecompounds to the carbon-attached isomers, 1- and 2-[(ClMe2Si)CH2] B5H8, is accomplished with the use of AlCl3 as catalyst. Flash thermolysis of 2-[(ClMe2Si)-CH2] B5H8 yields SiMe2ClH (48%), B5CH9(4.2%), and B5CH7(9.4%)
已经制备了[(ClCH 2)Me 2 Si] B 5 H 8类型的桥和末端取代的五硼烷(9)衍生物。通过使用AlCl 3作为催化剂,将1-和2-末端取代的五硼烷化合物均重排成与碳相连的异构体1-和2-[((ClMe 2 Si)CH 2 ] B 5 H 8)。闪蒸热解2-[((ClMe 2 Si)-CH 2 ] B 5 H 8产生SiMe 2 ClH(48%),B 5 CH 9(4.2%)和B 5 CH7种(9.4%)为主要挥发性产品。B 5 H 9在AlCl 3存在下与SiMe 3(CH 2 Cl)烷基化,得到1 -MeB 5 H 8和SiMe 3 Cl定量,而使用Si(CH 2 Cl)Cl 3进行烷基化试剂仅给出1-[((Cl 3 Si)CH 2 ] Br 5 H 8。