The design and synthesis of metal-organic hybrid materials(MOHMs)have attracted much attention not only because of their intriguing structural architectures but also owing to their promising applications in adsorption,guest exchange,magnetism,and heterogeneous catalysis.In contrast to the flourishing studies of organocarboxylate,the coordination chemistry of organosulfonate remains relatively rare,probably due to their weak coordinating ability,although they have similar structures.As a consequence of this,the sulfonate ligands are good candidates to provide unique opportunities for the combination of the auxiliary ligands in the discovery of novel MOHMs.Herein,we report our studies on an efficient protocol applicable to enamination of β–dicarbonyl compounds with copper naphthalenedifulfonate complex as new heterogeneous catalyst.