Article ID Journal Published Year Pages File Type
177771 Dyes and Pigments 2008 7 Pages PDF
Abstract

Novel, symmetrical and asymmetrical, 3,6-bis-hetarylazo-2,5,7-triaminopyrazolo[1,5-a]pyrimidine heterocyclic disazo dyes were synthesized via cyclization from substituted hetarylazomalononitrile precursors with various substituted hetarylazopyrazole compounds. The synthesized heterocyclic disazo dyes were characterized using FT-IR, 1H NMR, mass spectroscopy and elemental analysis. The solvatochromic effects of the dyes in various organic solvents were studied.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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