Development of new synthetic reactions that feature a tandem process triggered by Brook rearrangement, a C-to-O 1,2-anionic shift of a silyl group, will be discussed. A basic motif for the strategy is the generation of an alpha-siloxy carbanion by the reaction of acylsilanes with ketone enolates and then trapping the anions by intra- and inter-molecular electrophiles. For example, the reaction ...

Abstract The synthesis, characterisation and reactivity of two isostructural anionic magnesium calcium complexes is reported. By X‐ray neutron diffraction techniques, the hydrides are shown to exist as dimers, held together by a range interactions between anions bridging potassium cations. Unlike vast proportion previously reported dimeric group 2 hydrides, which have that bridge centres, here ...