Reactions given by
Reaction of anisole and hydrogen halide gives a molecule of phenol
and alkyl halide and not aryl halide and alcohol. This is because the halide
ion attacks the smaller alkyl group of the protonated
ether that offers less steric hindrance.
The alkoxy group of anisole is ortho
and para directing. When anisole is treated with a
mixture of concentrated nitric and sulphuric acid,
a mixture of ortho and para
compounds are formed.
Bromination of anisole also gives ortho and para bromo derivatives.
Purification of Ethers
Ethers when in contact with air get converted into
unstable peroxides which are highly explosive. Hence, ethers are purified
before distillation. Ethers when treated with ferrous salt and potassium thiocyanate give red colour
indicating the presence of peroxides.