Synthese, schwingungsspektren und normalkoordinatenanalyse von 1,2-Di-tert-butyltetrahalogendisilanen
作者:B Reiter、K Hassler
DOI:10.1016/0022-328x(94)88003-4
日期:1994.3
The cleavage of the silicon-phenyl bonds of 1,2-di-tert-butyltetraphenyldisilane with hydrogen halides HCl, HBr and HI produces 1,2-di-tert-butyltetrachlorodisilane, 1,2-di-tert-butyltetrabromodisilane and 1,2-di-tert-butyltetraiododisilane in good yields. tBuBr2SiSiBr2tBu easily reacts with ZnF2 in diethylether to form the tetrafluoroderivative. With trifluormethanesulfonicacid, two phenyl groups
1,2-二叔丁基四苯基乙硅烷与卤化氢HCl,HBr和HI的硅-苯基键裂解产生1,2-二叔丁基四氯乙硅烷,1,2-二叔丁基四溴乙硅烷和1,2 -二叔丁基四碘二硅烷的收率良好。t BuBr 2 SiSiBr 2 t Bu容易与ZnF 2在乙醚中反应形成四氟衍生物。使用三氟甲磺酸,可以从t BuPh 2 SiSiPh 2 t Bu中选择性地除去两个苯基。随后与LiX的反应得到乙硅烷t BuPhXSiSiXPh t Bu(X = F,Cl,Br,I)。最后,不对称叔丁基乙硅烷可以从Ph 2 t BuSiK和t Bu 2 SiHCl中获得t Bu 2 HSiSiPh 2 Bu,t Bu 2 t BrSiSiBr 2 t Bu和t BuHSiSiH 2 t Bu ,然后用HBr溴化并用LiAlH 4还原。报告并通过正态坐标分析分配了t BuX 2 SiSiX 2 t Bu的红外和拉曼振动光谱。