Question

Best method for preparation of given compound by williamson's ether synthesis is

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Williamson's ether synthesis:
It is used for the preparation of simple as well as mixed ethers.
It involve an alcoholic sodium or potassium alkoxide that reacts with a primary haloalkane to produce ether.

Williamson's ether synthesis is a $S_{N}2$ reaction. Here the alkoxide will act as nucleophile and attack the substrate from the back.
$3^o$ and $2^o$ alkyl halide does not react efficiently with alkoxide to give the desired product due to the steric hindrance in the substrate.
Hence, option (c) is correct.