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  • Chem Sci Trans., 2013, 2(4),  pp 1459-1465  

    DOI:10.7598/cst2013.518

    Research Article

    A Facile, One Pot, Solvent Free Synthesis of 14-Alkyl or Aryl-14H-dibenzo[a,j]xanthenes and 12-Aryl/alkyl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one Derivatives

  • SANJAY KUMAR, ARUN GOYAL, HARVINDER S. SOHAL and SANJEEV KUMAR
  • Department of Chemistry, M. M. Modi College, Patiala 147 001, Punjab, India
  • Abstract

    An efficient method for the one-pot synthesis of 14-alkyl or aryl-14H-dibenzo[a,j]xanthenes, by the condensation of aldehydes and β-naphthol under solvent free conditions using silica supported copper(II) sulphate, has been described. This strategy is further extended to three component coupling of aldehydes, β-naphthol and cyclic 1,3-dicarbonyl compounds for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives. The present catalytic system is recyclable and can be reused without greater loss of reactivity.

    Keywords

    Xanthenes, Naphthol, Solvent free reaction, Supported catalyst, Copper(II) sulphate

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