• PARTEEK KOUR

      Articles written in Journal of Chemical Sciences

    • A review on transition-metal mediated synthesis of quinolines

      RASHMI SHARMA PARTEEK KOUR ANIL KUMAR

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      Quinoline is one of the important class of heterocyclic compounds which have gained considerable importance because of its high pharmaceutical efficacy and broad range of biological activities such as anticancer, anti-malarial, anti-microbial and anti-asthmatic. As a consequence, the desire for new versatile andefficient route for the synthesis of quinoline scaffolds remains an active and growing area of interest both in academia and industry. However, developments of transition-metal catalyzed synthetic methods have witnessed a dominant position over the past few years for the synthesis of diverse range of complex heterocyclics containing quinoline scaffolds. This review specifically provides an overview of the literature available on the transition–metal catalyzed synthetic methodologies for the synthesis of polysubstituted quinoline derivatives.

    • An improved protocol for the synthesis of 3,4-disubstituted isoxazol- 5(4H)-ones through L-valine-mediated domino three-component strategy

      PARTEEK KOUR MONIKA AHUJA PRATIBHA SHARMA ASHOK KUMAR ANIL KUMAR

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      An expeditious, metal-free protocol has been demonstrated for the synthesis of isoxazolone derivatives using domino multi-component strategy. The envisaged methodology involves the L-valine promoted three-component cyclo-condensation reaction of alkylacetoacetates, hydroxylamine hydrochlorideand aldehydes in ethanol under reflux. The reaction proceeded to deliver the desired products in good to excellent yields (74–97%), exhibited good functional group tolerance and completed in less than 4 min with most of the substrates. High yields, short reaction time, noncorrosive organocatalyst, mild reaction conditions, clean reaction profiles and the absence of any tedious workup or purification are the beneficial features of this process. Moreover, quantum computational study has been performed at B3LYP/6-311G??(d, p) level toinvestigate the various DFT based molecular descriptors, HOMO–LUMO energy gap and electrostatic potential surface properties of the synthesized product

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