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Synthesis of New Azines in Various Reaction Conditions and Investigation of their Cycloaddition Reaction

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Abstract

A series of new azines were prepared by reaction of 2-ketoalkyl quinoline derivatives with some hydrazone in solvent free reaction conditions using ultrasonic irradiation. The application of ultrasonic irradiation improved the yields and reduced the reaction times. These azines, due to having α-acidic hydrogen next to azine group and heterocycle ring, have tautomeric forms the degree of each of which was determined on the basis of 13C NMR, 1H NMR, UV and IR spectrum. The results revealed that all compounds exist mostly in the enaminone form. We attempted to obtain criss-cross or probably Diels-Alder cycloaddition products through the reaction of some of these new azines with 2-chloroacrylonitrile as a dienophile. Some new diene systems developed from the said reactions.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Vali-e-Asr University, Rafsanjan, Islamic Republic of Iran, P.O. BOX 77176

    R. Ranjbar-Karimi

  2. Department of Chemistry, Faculty of Science, University of Isfahan, Isfahan, Islamic Republic of Iran

    H. Loghmani-Khouzani

Authors
  1. R. Ranjbar-Karimi
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  2. H. Loghmani-Khouzani
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Correspondence to R. Ranjbar-Karimi.

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Ranjbar-Karimi, R., Loghmani-Khouzani, H. Synthesis of New Azines in Various Reaction Conditions and Investigation of their Cycloaddition Reaction. JICS 8, 223–230 (2011). https://doi.org/10.1007/BF03246219

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  • DOI: https://doi.org/10.1007/BF03246219

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