Synthesis and characterization of novel yellow azo dyes from 2-morpholin-4-yl-1, 3-thiazol-4 (5H)-one and study of their azo–hydrazone tautomerism

…, VS Padalkar, KR Phatangare, VD Gupta, AB Thate…

Index: Umape, Prashant G.; Patil, Vikas S.; Padalkar, Vikas S.; Phatangare, Kiran R.; Gupta, Vinod D.; Thate, Abhinav B.; Sekar, Nagaiyan Dyes and Pigments, 2013 , vol. 99, # 2 p. 291 - 298

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Citation Number: 18

Abstract

Abstract Novel yellow azo dyes were synthesized by diazotization of aromatic amines followed by coupling with 2-morpholin-4-yl-1, 3-thiazol-4 (5H)-one and fully characterized. The geometries of the synthesized dyes for azo and hydrazone tautomeric forms were optimized using B3LYP, CAM-B3LYP and M06 functional and 6-31G (d) and 6-311++ G (d, p) basis sets, also their electronic excitation properties were evaluated using density ...

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