Give equations of the following reactions:
(i) Oxidation of propan-1-ol with alkaline `KMnO_(4)` solution.
(ii) Bromine in `CS_(2)` with phenol.
(iii) Dilute `HNO_(3)` with phenol.
(iv) Treating phenol wih chloroform in presence of aqueous NaOH.

Explanation

(i) `{:(CH_(3)CH_(2)CH_(2)OHunderset("(Oxidation)")overset(KMnO_(4)//OH^(-))(rarr)CH_(3)CH_(2)CHOunderset("(Oxidation)")overset(KMnO_(4)//OH^(-))(rarr)CH_(3)CH_(2)COOH),(" Propan-1-ol"" Propanal"" Propanoic acid"):}`
(ii)
(iii)
(iv)
For further details of the reaction known as Reimer-Tiemann reaction, consult section 16 (Chemical properties of phenols).