CH\_3Br \xrightarrow{AgCN} A \xrightarrow{H\_3O^+} B, \[B] i... | Chemistry - Preparation of Amines / Reactions of Isocyanides | SolveeIt | Solveeit

Today, August 19

Question

$CH_3Br \xrightarrow{AgCN} A \xrightarrow{H_3O^+} B$ , [B] is -

Visual representation for Chemistry

A

$CH_3NH_2$

B

$(CH_3)NH$

C

$C_2H_5NH_2$

D

$CH_3COOH$

Answer

$CH_3NH_2$

Explanation

Solution

The reaction proceeds as follows:

$CH_3Br$ reacts with $AgCN$ to form $CH_3NC$ (methyl isocyanide). $AgCN$ is a covalent compound, so the nitrogen atom attacks the carbon.
$CH_3NC$ undergoes hydrolysis in the presence of $H_3O^+$ to yield $CH_3NH_2$ (methylamine) and $HCOOH$ (formic acid).

Therefore, the product B is $CH_3NH_2$ .