Reactions of bis[dimethyl(vinyl)silyl]bis(trimethylsilyl)methane, (Me3Si)2C(SiMe2CHCH2)2

Abstract

The compound (Me₃Si)₂C(SiMe₂CHCH₂)₂(1) reacts in CCl₄ with halogens X₂ where X = Cl, Br, or I, to give the corresponding (Me₃Si)₂C(SiMe₂X)₂ species, and with ICl to give (Me₃Si)₂C(SiMe₂Cl)₂; the reaction with Br₂ apparently initially gives addition products, which decompose on work-up. Reaction with AlCl₃ in CCl₄ gives (Me₃Si)_nC(SiMe₂Cl)_{4 –n}(n= 0–2) species. The reaction with CF₃CO₂H at 60 °C gives initially (Me₃Si)₂C(SiMe₂CHCH₂)(SiMe₂O₂CCF₃), which subsequently reacts ca. 20 times as slowly to give (Me₃Si)₂C(SiMe₂O₂CCF₃)₂. There is no indication that the proximity of one vinyl group affects the reactivity at the other in these reactions of (1).