The reaction of R C O N H 2 with a mixture of B r 2 and aqueous K O H gives R N H 2 as the main product. The intermediate not involved in this reaction is (are):

Step-by-step solution

This is Hofmann bromamide reaction and R C O N B r 2 does not form in this reaction. See mechanism for it: R C O - N H 2 + B r 2 + 4 K O H → R - N H 2 + K 2 C O 3 + 2 K B r + 2 H 2 O