Some Important Conversions of Aromatic Compounds Containing Nitrogen

Explain the conversion of p-toluidine to m-bromotoluene.

m-bromotoluene is prepared by:

Explain the conversion of aniline to p-toluidine.

Write the equation for the formation of m-bromotoluene from p-toluidine.

Which of the following reaction condition will convert diazonium salt to phenol?

Balz–Schiemann reaction is used to convert primary aromatic amine to aniline.

Diazonium salt on reaction with hypophosphorous acid gives

Identify the reagent used in the following conversion:

${\mathrm{C}}_6{\mathrm{H}}_5{\stackrel{+}{\mathrm{N}}}_2\stackrel{-}{\mathrm{Cl}}\stackrel{ ? }{\to }{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CN}+{\mathrm{N}}_2$

Identify $\left[\mathrm{A}\right]$ and $\left[\mathrm{B}\right]$ in the following chemical reactions.

${\mathrm{C}}_6{\mathrm{H}}_5{{\mathrm{N}}_2}^{+}{\mathrm{Cl}}^{-}\underset{{\mathrm{NaNO}}_2}{\overset{\mathrm{Cu}}{\to }}\left[\mathrm{A}\right]\underset{6\left[\mathrm{H}\right]}{\overset{\mathrm{Sn}/\mathrm{HCl}}{\to }}\left[\mathrm{B}\right]$

A dye obtained by the reaction of reactant $\mathrm{X}$ with benzene diazonium chloride. The reactant $\mathrm{X}$ is-

Balz–Schiemann reaction is used to convert primary aromatic amine to aniline.

Identify '$\mathrm{C}$' in the following reaction: