马来酸酐   、                                                                                      
(1,3-butadien-2-yl)[4-(dimethylamino)pyridine](N,N'-ethylenebis(salicylideneaminato))cobalt(III)                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                                                        以80%的产率得到(cis-4,4,7,7,8,9-hexahydro-1,3-dioxoisobenzofuran-6-yl)[4-(dimethylamino)pyridine](N,N'-ethylenebis(salicylideneaminato))cobalt(III)