• A one-step efficient general method for the synthesis of naphthopyrones: A first synthesis of spiro [naphthalene-2,4′-phenanthrene] carbocycles

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    • Keywords


      Tetralones; α,β-unsaturated acids; 4H-naphtho(1,2-b)pyrone; spiro [naphthalene-2,4′-phenanthrene]-1,1′-dione

    • Abstract


      A new synthesis of naphthopyrones and hexahydrospiro [naphthalene-2,4′-phenanthrene]-1,1′-diones has been accomplished by the Friedel-Crafts reaction of various 1-tetralones with α,β-unsaturated acids in the presence of polyphosphoric acid (PPA).

    • Author Affiliations


      Jaysukhlal R Merchant1 Neville V Fernandes1

      1. Organic Chemistry Research Department, D G Ruparel College, Senapati Bapat Marg, Bombay - 400 016, India
    • Dates

  • Journal of Chemical Sciences | News

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