Synthesis of Disperse azo Dyes from 2-(O-Amino Phenyl) Benzimi- Dazole and their Application on Polyester Fibre

U. V. Malankar and K.R. Desai

Department of Chemistry, South Gujarat University, Surat-395 007 India.

ABSTRACT:

2-(O-amino phenyl) benzimidazole, a useful diazo component in the preparation of azo dyes, was prepared by condensing anthranilic acid with O-phenylenediamine in poly phosphoric acid. It was diazotised and coupled with various substituted aniline derivatives to give azo dyes. The spectral properties of these dyes are reported. The dyes had generally good colouration and fastness properties on polyester.

KEYWORDS:

Disperse; Dazole; Azo; Polyester

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Copy the following to cite this article: Malankar U. V, Desai K. R. Synthesis of Disperse azo Dyes from 2-(O-Amino Phenyl) Benzimi- Dazole and their Application on Polyester Fibre. Orient J Chem 1994;10(1).

Copy the following to cite this URL: Malankar U. V, Desai K. R. Synthesis of Disperse azo Dyes from 2-(O-Amino Phenyl) Benzimi- Dazole and their Application on Polyester Fibre. Orient J Chem 1994;10(1). Available from:http://www.orientjchem.org/?p=38215