Monoazo Dyes: Coupling Reactions between Indanone Compounds and Heterocyclic Aminothiophene-Containing Spiro Group

Year 2024, Volume: 1 Issue: 1, 1 - 7, 31.07.2024

Naki Çolak Gülnihal Erten Aynur İzancı Umut Sancur

Abstract

In this study, firstly, 2-amino-spiro[benzo]thiophene derivatives were prepared using the Gewald method. Subsequently, monoazo dyes were synthesized using conventional diazotization method, with 2-indanone or 1,3-indandione compounds as preferred coupling components. The chemical structures of the monoazo dyes have been characterized using several spectroscopic methods (FT-IR, 1H-NMR, 13C-APT NMR). The tautomeric forms of the dyes were discussed, and it was concluded that the hydrazo form is the dominant tautomer.

Keywords

2-Aminothiophene, Spiro[benzo]thiophene, Azo dyes, Heterocyclic components

Ethical Statement

It is declared that scientific and ethical principles have been followed while carrying out and writing this study and that all the sources used have been properly cited.

Supporting Institution

TÜBİTAK

Project Number

1919B012224050

Thanks

This work was supported by TUBITAK through a research Grant No. 1919B012224050.

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