Reactions with Maleimides XI: 1 Dipolar Cycloaddition Reactions with Thiazolonylarylhydrazones: A New Route for the Synthesis of Several New Thiazolonylpyrazoles of Expected Biological Activities

Sanaa M. Eldin Department of Chemistry of Pesticides, National Research Center and National Organization for Drug Control and Research, Cairo, Egypt

Hatem M. Gaber Department of Chemistry of Pesticides, National Research Center and National Organization for Drug Control and Research, Cairo, Egypt

Sami S. Ghabrial Department of Chemistry of Pesticides, National Research Center and National Organization for Drug Control and Research, Cairo, Egypt

Abstract

Several new pyrrolopyrazoles were synthesised via the reaction of thiazolonylarylhydrazones with N-arylmaleimides followed by partial dehydrogenation using bromobenzene and complete aromatization using nitrobenzene. Structures were elucidated by elemental analyses and spectral data studies.

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Reactions with Maleimides XI: 1 Dipolar Cycloaddition Reactions with Thiazolonylarylhydrazones: A New Route for the Synthesis of Several New Thiazolonylpyrazoles of Expected Biological Activities

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Reactions with Maleimides XI: 1 Dipolar Cycloaddition Reactions with Thiazolonylarylhydrazones: A New Route for the Synthesis of Several New Thiazolonylpyrazoles of Expected Biological Activities

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