Cyclic phosphines and arsines. I. Reactions with metal carbonyls

Abstract

A number of cyclic phosphines (PR)_n, where R = Ph, Me, Et, and n = 4 or 5, and arsenobenzene (AsPh)₆ has been found to react with metal carbonyls to give coordination compounds such as (PPh)₄Ni(CO)₃, (PR)₅M(CO)_n (where n = 5, 4, or 3, and M = Cr, Mo, or W), (PR)₄[Fe(CO)₃]₂, and (AsPh)₆Mo(CO)₄.