Synthesis and characterization of novel azo disperse dyes containing a-amino phosphonate and their dyeing performance on polyester fabric

Abstract

THREE α-aminophosphonates novel azo disperse chromophores. dyes were designed, The target synthesized, compounds and were characterized prepared by by utilizing employing of of benzidine as amine and different heterocyclic formyl as aldehyde, and triphenylphosphite P(OC6H5)3 that gives a-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 prepared dyes were structurally confirmed 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.