CH_3 NH_2+CHCl_3+KOH arrow Nitrogen containing compound +KCl+H_2 O...

$\mathrm{CH}_3 \mathrm{NH}_2+\mathrm{CHCl}_3+3 \mathrm{KOH} \rightarrow \mathrm{CH}_3 \mathrm{NC}+3 \mathrm{KCl}+3 \mathrm{H}_2 \mathrm{O}$ $\mathrm{CH}_3 \mathrm{NC}$ or $\mathrm{CH}_3-\mathrm{N}^{+} \equiv \overline{\mathrm{C}}$ Methyl isocyanide or Methyl carbyl amine This reaction is an example of carbyl amine reaction and its is used for the distinction of $p$-amines with $s$ - and $t$-amines or identification of $p$-amino group.