THE TRANSITION METAL CATALYZED REACTION BETWEEN Fe(CO)5 AND GROUP V DONOR LIGANDS. A FACILE, HIGH YIELD SYNTHESIS OF Fe(CO)4PPh3

Article abstract of DOI:10.1016/S0022-328X(00)93454-5

The reaction of Fe(CO)5 and L (L=Group V donor ligand), in the presence of CoCl2 * 2 H2O or CoI2 * 4 H2O as catalyst, results in the synthesis of Fe(CO)4L in good yield.Unusual reactivity patterns for the substitution of CO on Fe(CO)5 by L have been found; for CoI2 as catalyst the reaction rate increases in the order PPh3 ca.AsPh3 ca.P(OPh)3 > SbPh3 > PPh2Me > PPhMe2 > P(C6H11)3 > P(OEt)3 > P(n-Bu)3 > P(OMe)3.These results are interpreted in terms of the variation of the catalyst through interaction of CoX2 with L.