The iron complex CpFe (C0) 21 (1) undergoes a clean coupling reaction of the F e I bond with the Sn-CE bond of various triallryltin acetylides R, S nm R'(R'= H, Pr, Bu, Ph) in the presence of a catalytic amount (5%) of (CH3CN) 2PdC12 to give the corresponding u- alkynyl metal complexes CpFe (C0) 2CeR'[R'= H (2), Pr (3), Bu (4), Ph (511 in* 70% yields. Under the same conditions, 1 equiv of complex 1, CpFe (CO) J, in the presence of ...
