Electrophilic addition of an osminim-bound chloromethylene ligand to the benzene ring of a triphenylphosphine ligand. Synthesis of metallacyclic and metallabicyclic complexes. X-Ray structures of [OsCl(CO)2(o-PPh2C6H4CHCl)(PPh3)] and [OsCl(CO)2(o-PPh2C6H4CHC6H4PPh2-o)]

Abstract

Os(CHF₂)Cl(CO)₂(PPh₃)₂ reacts with BCl₃ to give the title metallacycle, (4), which is the product of addition of a CHCl-ligand to the benzene ring of ligated triphenylphosphine and further reaction with BCl₃ generates the title metallabicyclic complex, (5).