the three-component assembling reaction to furnish the corresponding 1,4-diene derivatives in good yields. Several alkenylzirconium reagents (R2CH=CHZr(Cp)2Cl: R2 = Ph (3b), t-Bu, TMS) were also employed for this three-component assembly. The nickel-catalyzedthree-component assembly was further extended to vinyl iodides. Thus, 1a reacts with 3b and ethyl (Z)-3-iodoacrylate to produce a highly substituted