Abstract
Three novel azo disperses dyes were designed, synthesized, and characterized by utilizing of α-aminophosphonates chromophors. The target compounds were prepared by employing of benzidine as amine and different heterocyclic formyl as aldehyde, and triphenylphosphite P(OC6H5)3 that gives -aminophosphonate in one position and free amino group in the other position, which was then coupled with β–naphthol to give the target products azo disperse dyes. The structures of all the synthesized dyes were established by IR, 1HNMR and mass spectral data and applied to polyester fabric as azo disperse dyes and all fastness properties for the dyed samples were measured.
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