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      https://www.ias.ac.in/article/fulltext/jcsc/131/04/0029

    • Keywords

       

      Coumarins; pyridine; pyrazole; zinc chloride; multicomponent reactions; one-pot synthesis

    • Abstract

       

      An efficient synthesis of a series of pyrazolopyridocoumarins is reported by condensation of 4hydroxycoumarin, benzaldehydes and 1-alkyl-5-amino-pyrazoles in the presence of 10 mol% zinc chloride in ethanol under reflux conditions through one-pot reaction. The significant attraction of this protocol is being a simple procedure, mild reaction condition, and excellent yield. The molecular structure of the compound (4e) is established by single crystal X-ray structure determination.

    • Author Affiliations

       

      DEVADAS SHAMALA1 KALEGOWDA SHIVASHANKAR1 CHANDRA2 MADEGOWDA MAHENDRA2

      1. P. G. Department of Chemistry, Bangalore University, Central College Campus, Bangalore, Karnataka 560 001, India
      2. Department of Studies In Physics, Manasagangotri, University of Mysore, Mysore, Karnataka 570 006, India
    • Dates

       
    • Supplementary Material

       
  • Journal of Chemical Sciences | News

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