Synthesis and reactions of [tris(trimethylsilyl)methyl]ethyl dichlorosilane

The crowded TsiSiEtXX′ (X = X′ = Cl, X = X′ = SCN, X = X′ = NCS, X = X′ = NCO, X = X′ = N3, X = X′ = H, X = X′ = Br, X = X′ = I, X = X′ = OH, X = H; X′ = I, X = H; X′ = OH, X = H; X′ = OMe, X = I; X′ = OMe) have been synthesized by electrophilic and nucleophilic reagents.When TsiSiEtCl2 was treated with NaOMe/MeOH it gave (Me3Si)2CHSiEt(OMe)2.