Alkylation and acylation of co-ordinated tertiary phosphines: the nucleophilic substitution of the carbanions derived from [M(CO)4(Ph2PCH2PPh2)](M = Cr, Mo, or W)
Abstract
Complexes of the type [M(CO)4(Ph2PCH2PPh2)] are readily deprotonated by strong bases and the resultant carbanions attacked by nucleophiles such as MeI, EtI, CH2: CHCH2Cl, PhCH2Cl, Me3SiCl, Ph2PCl, PhCOCl, or MeC6H4COCl, to effect C-substitution.