(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