Simple route to a novel class of pyrazol
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Jalal Isaad; Anne Perwuelz
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Article
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2010
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Elsevier Science
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French
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We report an easiest synthesis strategy of a new class of synthetic dyes by coupling of functionalized pyrazolidine-3,5-dione derivatives via diazotization reaction with aromatic diamine for the azoic dyes or via dimerization reaction to synthesize the H chromophore dyes. Electron delocalization bet