Synthesis of 4-Phenylazo Phenol from Anthocyanins of Delonix regia and Hibiscus sabdariffa Flowers

Oaikhena Z. Esezobor *

Department of Chemistry, University of Agriculture, Makurdi, Nigeria

Bassey A. Maikasuwa

Department of Chemistry, University of Agriculture, Makurdi, Nigeria

Terrumun A. Tor-Anyiin

Department of Chemistry, University of Agriculture, Makurdi, Nigeria

John O. Igoli

Department of Chemistry, University of Agriculture, Makurdi, Nigeria

*Author to whom correspondence should be addressed.


Abstract

Anthocyanins extracted from flowers of Delonix regia and Hibiscus sabdariffa were coupled with diazotised aniline. Spectroscopic analysis revealed the resulting product to be 4-phenylazo phenol. This study provides a viable use for anthocyanins as an alternative source of phenol used in the synthesis of this dye.

Keywords: 4-phenylazo phenol, aniline, anthocyanins, Delonix regia, Hibiscus sabdariffa


How to Cite

Z. Esezobor, Oaikhena, Bassey A. Maikasuwa, Terrumun A. Tor-Anyiin, and John O. Igoli. 2015. “Synthesis of 4-Phenylazo Phenol from Anthocyanins of Delonix Regia and Hibiscus Sabdariffa Flowers”. Chemical Science International Journal 11 (1):1-7. https://doi.org/10.9734/ACSJ/2016/22393.

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