Russian Journal of General Chemistry

, Volume 89, Issue 1, pp 117–121 | Cite as

Cadmium Naphthalenedisulfonate Complex as Heterogeneous Catalyst in the Knoevenagel Condensation

  • D.-S. Deng
  • H. GuoEmail author
  • X. He
  • B. Ji


The reaction of naphthalene-1,5-disulfonate (1,5-nds), 2,4,5-tris(pyridin-4-yl)imidazole (tpim), and cadmium(II) acetate dihydrate Cd(OAc)2·2H2O afforded a 2D coordination polymer, [Cd(tpim)(1,5-nds)]n (1). Crystal structure analysis of the obtained complex showed the presence of its molecule of uncoordinated pyridyl groups as active organic sites. The complex was found to act as efficient and reusable heterogeneous catalyst in the Knoevenagel condensation. Its stability under the reaction conditions was confirmed by comparison of the powder X-ray diffraction patterns of the fresh and reused catalysts.


organosulfonate heterogeneous catalysis Knoevenagel reaction basic catalyst 


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© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Henan Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyangChina

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