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Phenols

Contains a benzene ring with an ­O-H group attached




The simplest phenol called Phenol




TCP (2,4,6, TriChloroPhenol)




Chem. of Phenols


They are weak acids
o react with bases
i. Acid + Base Salt + H2O




ii. Acid +
Metal Salt + H2




iii. Acid + Carbonate No reacton
Phenols…

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The Arene in the phenol behaves like an Arene




Why is phenol more reactive than benzene?



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Marking points for exam

The lone pair of electrons one the O in phenol are delocalised into the ring
o increase the electron density
o attacks electrophiles more easily
o no catalyst needed

Phenols react with an excess of Br2 to make 2,4,6, tribromophenol
which is formed as a white…

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A white precipitate is formed




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