Chinese Journal of Catalysis

Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (1): 43-48.DOI: 10.1016/S1872-2067(12)60707-4

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Poly(4-vinylpyridinium)hydrogen sulfate: A novel and efficient catalyst for the synthesis of 13-aryl-indeno[1, 2-b]naphtha[1, 2-e]pyran-12(13H)-ones under solvent-free conditions

Majid Ghashanga, Syed Sheik Mansoorb, Krishnamoorthy Aswinb   

  1. a Faculty of Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Esfahan, Iran;
    b Bioactive Organic Molecule Synthetic Unit, Research Department of Chemistry, C. Abdul Hakeem College, Melvisharam -632 509, Tamil Nadu, India
  • Received:2013-08-05 Revised:2013-09-02 Online:2013-12-23 Published:2014-01-17
  • Contact: Syed Sheik Mansoor

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Abstract:

An facile and efficient protocol for the synthesis of 13-aryl-indeno[1,2-b]naphtha[1,2-e]pyran- 12(13H)- ones has been developed that proceeds via the one-pot three-component sequential reaction of an aromatic aldehyde with β-naphthol and 2H-indene-1,3-dione under solvent-free conditions in the presence of a poly(4-vinylpyridinium)hydrogen sulfate (P(4-VPH)HSO4) catalyst. The catalyst can be reused several times, making this procedure facile, practical, and sustainable. The simple experimental procedure, solvent-free reaction conditions, use of an inexpensive catalyst, short react time, and excellent yields are some of the major advantages of this methodology.

Key words: Poly(4-vinylpyridinium)hydrogen sulfate, Indenonaphthopyrans, 2H-indene-1,3-dione, β-Naphthol