Synthesis of 4,4'-dihydroxyazobenzeneand 4'-Dihydroxyphenylazo-2-naphthol from Diazotised aniline and Anthocyanins from Delonix regia flower
Journal Title: Chemical Science International Journal - Year 2017, Vol 20, Issue 1
Abstract
The synthesis of 4-phenylazo phenol by coupling anthocyanins extracted from Delonix regia flowers with diazotised aniline is presented in this paper. Also reported here is the reduction of 4-phenylazo phenol to yield 4-aminophenol and coupling of 4-aminophenol to phenol and 2-naphthol which yielded 4,4'-dihydroxyazobenzene and 4'-hydroxyphenylazo-2-naphthol, respectively. The structures of the compounds were confirmed by 1H- and 13C-NMR spectroscopy after purification by column chromatography on silica gel.
Authors and Affiliations
Lawrence Mark Leonard Ogboji, Oaikhena Zekeri Esezobor, Mulu Emmanuel Khan, John Ogbaji Igoli
Keywords
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- EP ID EP319611
- DOI 10.9734/CSJI/2017/35020
- Views 70
- Downloads 0
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