A bromo(boryloxy) silylene and its heavier analogues†
Abstract
A N-heterocylic boryloxy ligand equipped with bulky diazaboryl N-substituents is used to synthesize divalent and dicoordinate group 14 compounds which represent the first examples of acyclic halo(boryloxy) tetrylenes. The bromo(boryloxy) silylene reacts swiftly with benzophenone to a siloxindane.