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      https://www.ias.ac.in/article/fulltext/jcsc/132/0147

    • Keywords

       

      Sulfated polyborate; polyhydroquinolines; Hantzsch condensation; solvent-free; solid acid catalyst.

    • Abstract

       

      An environmentally viable, green and efficient protocol for the synthesis of polyhydroquinolines using sulfated polyborate catalyst have been developed by Hantzsch four-component condensation between aromatic aldehydes, dimedone, ammonium acetate and ethylacetoacetate or ethylcyanoacetate at 100°Cunder solvent-free condition. The sulfated polyborate catalyst is characterized by FT-IR, XRD, SEM and EDAX techniques. The noticeable features of this methodology are mild Brønsted acidic nature of the catalyst, good to excellent product yields (85–94%), short reaction time (18–30 min), solvent-free condition,operational simplicity and applicability to a wide range of substrates (29 examples)

    • Author Affiliations

       

      DILIP AUTE1 2 AKSHAY KSHIRSAGAR1 BHAGWAT UPHADE1 ANIL GADHAVE1

      1. Department of Chemistry and Research Centre, Padmashri Vikhe Patil College (Affiliated to Savitribai Phule Pune University, Pune), Pravaranagar District, Ahmednagar, Maharashtra 413 713, India
      2. Department of Chemistry, Arts Commerce & Science College, Satral, Maharashtra, India
    • Dates

       
  • Journal of Chemical Sciences | News

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