The mild phase transfer syntheses of the ylide adduct (CO)4Fe-CH2P+Ph3, the octacarbonyl(μ-methylene)diiron μ-CH2Fe2(CO)8, and acyl tetracarbonyliron anions RCOFe(CO)4- are consistent with the transient generation of the F

Article abstract of DOI:10.1016/0022-328X(89)85430-0

Addition of Fe(CO)5 under a nitrogen or carbon monoxide atmosphere to the CH2XY/H2O phase transfer system (X, Y=Cl, Br; 1 M NaOH and Bu4N⁺ HSO4^- added) after prior introduction of PPh3, yields the ylide adduct (CO)4Fe^-CH2P