75205-75-3Relevant articles and documents
Studies in Pyrazolone-Azo Dyes. Part II : Synthesis of Some 1-Anilinomalonyl-3-methyl-4-Substituted Phenyl-Azo-5-Pyrazolones
Jolly, V. S.,Shrivastava, A. K.,Singh, S. P.,Tiwari, K. S.
, p. 539 - 541 (2007/10/02)
Synthesis of some 1-anilinomalonyl-3-methyl-4-substituted phenyl-azo-5-pyrazolones is reported.Ethylacetoacetate on condensing with diazotised amines gave ethyl-α-substituted phenyl-azo-acetoacetates which on treatment with acid hydrazides of maloanilic acid series, in acetic acid, gave pyrazolone-azo dyes.These dyes impart mostly yellow colour to cotton, silk, wool and polyester fibres.None of the products show significant bacteriostatic or fungicidal activity.