Silanols of the type R3SiOH, RuSi(OH)2 and R2Si(OH)OSiFR2 react selectively with phosphorus pentahalides (PCl5, PBr5) by hydroxy-halide exchange. Halosilanols (R2Si(OH)Hal, Hal = Cl, Br) and mixed halosubstituted fluorosilanes (R2SiFHal, Hal = Cl, Br) have been prepared. Di-butylchlorofluorosilane reacts with elemental lithium to give a 1,2-difluorodisilane.
R 3 SiOH,RuSi(OH)2和R 2 Si(OH)= O = SiFR 2类型的
硅烷醇通过卤代羟基交换与五
卤化磷(
PCl 5,PBr 5)选择性反应。已经制备了卤代
硅烷醇(R 2 Si(OH)Hal,Hal = Cl,Br)和混合的卤代
氟硅烷(R 2 SiFHal,Hal = Cl,Br)。二丁基
氯氟硅烷与元素
锂反应生成1,2-二
氟乙
硅烷。