Synthesis of Chlorosilicates

Chlorosilicates represent important intermediates in SN2 reactions of chlorosilanes. They can be stabilized by the introduction of electron‐withdrawing substituents. Salts of various (pentafluoroethyl)chlorosilicates have been isolated and structurally characterized. Pentacoordinate chlorosilicates are known to be reactive intermediates. They can be stabilized by the introduction of at least two electron‐withdrawing C2F5 groups, which has allowed the characterization of a series of (pentafluoroethyl)chlorosilicates (see example) in solution as well as in the solid state.