(1,2-bis[1,3-dioxan-2-yl]-3,4-diethynylcyclobutadiene)cyclopentadienylcobalt 、
4,6-二甲基-2-碘嘧啶 在
bis-triphenylphosphine-palladium(II) chloride CuI 作用下,
以
三乙胺 为溶剂,
以86%的产率得到((C4H7O2)2(4,6-dimethylpyrimidylethynyl)2(cyclobutadiene))(cyclopentadienyl)cobalt