Synthesis of 4-Phenylazo Phenol from Anthocyanins of Delonix regia and Hibiscus sabdariffa Flowers
Oaikhena Z. Esezobor, Bassey A. Maikasuwa, Terrumun A. Tor-Anyiin, John O. Igoli
Chemical Science International Journal · pp. 1–7 · Published 10 Nov 2015
10.9734/ACSJ/2016/22393Abstract
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.
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