Tetrahedron Letters

Simple route to a novel class of pyrazolidine-3, 5-dione based azo dyes

J Isaad, A Perwuelz

Index: Isaad, Jalal; Perwuelz, Anne Tetrahedron Letters, 2010 , vol. 51, # 40 p. 5328 - 5332

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Citation Number: 6

Abstract

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 between the two coupled components has been studied using UV–vis spectroscopy, infrared, and NMR spectroscopy. In addition, the formation ...

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