1.

Explain the preparation of phenol from cumene.

Answer»

Solution :a. (i) Cumene is oxidised in the presences of air to Cumene hydroperoxide, which on treating with dilute acid GIVES phenol and acetone.

B. Williamson.s synthesis is an important lab method for preparation SYMMETRICAL and unsymmetrical ethers. In this method, an alkyl HALIDES allowed to react sodium alkoxide.
`R-x+R.-underset(..)overset(bar(..))(O)-NatoR-underset(..)overset(..)(O)-R.+NaX`
Ether containing substituted alkyl groups may also be prepared by this method.


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