The synthesis and application of 3-arylazo-4-phenylthieno[2,3-c]isothiazole and ethyl 3-arylazo-4-phenylthieno[2,3-c]isothiazole-5-carboxylate

• Main Authors: G. G. PAWAR, P. BINEESH, P. S. R. KUMAR, D.W. RANGNEKAR, V. R. KANETKAR
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2005-06-01
• Series: Journal of the Serbian Chemical Society
• Subjects: 3-arylazo-4-phenylthieno[2; 3-c]isothiazole; ethyl 3-arylazo-4-phenylthieno [2; 3-c]isothiazole- 5-carboxylate; disperse dyes; polyester fabric; application
• Online Access: http://www.shd.org.yu/HtDocs/SHD/vol70/No6/JSCS_V70_No6-02.pdf
• ISSN: 0352-5139

The paper describes the synthesis of 3-amino-4-phenylthieno[2,3-c]isothiazole and ethyl 3-amino-4-phenylthieno[2,3-c]isothiazole-5-carboxylate and their utilization to prepare a range of azo disperse dyes. These novel aryl azo dyes were studied with respect to their colour and constitution relationship. The application of these dyes on a polyester fabric and their fastness properties were evaluated. These dyes were characterized by NMR, IR and visible absorption spectroscopy.