Herein a novel cobalt complex prepared by combination of Co(NO3)2.6H2O and thiosalycilic acid. Prepared microsphere cobalt complex was characterized by XRD, FTIR, TGA, BET, ICP and SEM techniques. Also, we report here an efficient method for the preparation of pyrroloacridine‐1(2H)‐one derivatives from a three‐component condensation reaction of amine, dimedone, and isatin and synthesis of chromeno [2, 3‐ d] pyrimidin‐8‐amines by reaction of benzaldehyde, α‐naphthol, malononitrile, and ammonium acetate in the presence of microsphere cobalt complex as the catalyst. The microsphere cobalt complex can be recovered without great loss of catalytic activity.

In this study, the thermal and catalytic behavior of Ni-microsphere and Cu-MOF were investigated with aspartic acid as the coordinating ligand with different morphologies.