c
\({\mkern 1mu} \mathop {R{\mkern 1mu}  - {\mkern 1mu} CO{\mkern 1mu} N{H_2}}\limits_{amide} {\mkern 1mu}  + {\mkern 1mu} B{r_2}{\mkern 1mu}  + {\mkern 1mu} 4KOH{\mkern 1mu} \) \({\mkern 1mu}  \to {\mkern 1mu} {\mkern 1mu} R{\mkern 1mu}  - {\mkern 1mu} \mathop {N{H_2}}\limits_{amine} {\mkern 1mu}  + {\mkern 1mu} {K_2}C{O_3}{\mkern 1mu} \) \({\mkern 1mu}  + {\mkern 1mu} 2KBr{\mkern 1mu}  + {\mkern 1mu} 2{H_2}O\)