Synthese 1,4-disubstituierter Tetrasilane durch selektive Spaltung von Si-Phenyl-Bindungen

Article abstract of DOI:10.1016/0022-328X(92)80126-I

Just two of three SiPh bonds per silicon atom are cleaved by excess HBr under pressure.Thus, pentaphenyldisilane reacts with HBr at room temperature to give 1-phenyl-2,2,3,3-tetrabromodisilane.Subsequent coupling with bis-(t-butyl)-mercury yields, 1,4-dip