Derivatives are prepared to improve the properties of its parent. I. Assignment: Draw the structure of the phenol derivatives (Canvas Assignment will be posted/published). Handwritten only 1) Cresols: are better antiseptic/disinfectant than phenol, e.g. LYSOL TM • 2-methylphenol (0-methylphenol/o-cresol) • 3-methylphenol (m-methylphenol/m-cresol) • 4-methylphenol (P-methylphenol/p-cresol) 2) 2-hydroxyphenol (o-hydroxyphenol/catechol) – antiseptic/disinfectant 3) 3-hydroxyphenol (m-hydrophenol/resorcinol) – antiseptic/disinfectant 4) p-hydroxyphenol (hydroquinone/Quinol) –antiseptic/photographic developer 5) 4-hexyl-1,3-dihydroxybenzene, (4-hexylresorcinol)- better than resorcinol

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Diol

In chemistry there are so many chemical compounds that have a hydroxyl group but a chemical compound having two hydroxyl groups (-OH) is termed as a diol. It also implies the presence of two alcohols whereas polyols contain two or more than two hydroxyl groups (-OH). Glycol or 1,2-diol is an aliphatic diol that has two alcohol groups on adjacent carbon atoms. In industries, the most commonly used diol is ethylene glycol.