Which of the following is used for the preparation of a primary amine having one C-atom more than the starting haloalkane?

Options

A. Reaction with aqueous KCN followed by reduction
B. Reaction with AgCN followed by reduction
C. Reaction with aqueous `NH_3`
D. All of the above

Answer

A

Explanation

Method for converting alkyl halides into primary amines having one carbon atom more than the parent alkyl halide.
alkyl halide `underset("Alkylhalide")(R-X) underset(-KX)overset(KCN (alc))to underset("Alkycyanide")(R-CN) underset("ii)" H_2 O)overset("i)" LiAlH_4//"ether")to underset(1^@ "Amine")(RCH_2 -NH_2)`