Question

How do you convert C6H5CONH2to C6H5NH2

Answer 1

By hoffman degredation Add KOH aq +HBr

Answer 2

The process of getting rid of carbonyl group (CO) beside an amino group ($NH_n$) is known as hoffman degradation .

The process requires an reagents as $Br_2$ and a strong base like NaOH or KOH

$C_6H_5CONH_2 + NaOH+Br_2 = C_6H_5NH_2 + NaBr + BrCOOH$