Amongst the given set of reactants the most appropriate for preparing `2^@` amine is __________________ .

Options

A. `(2^@ ) R-Br + NH_3 `
B. `(2^@ ) R-Br + NaCN `followed by `H_2 //Pt`
C. `(1^@ )R-NH_2 +RCHO `followed by `H_2 //Pt`
D. `(1^@ )R-Br (2 mol) `+ potassium phthalimide followed by `H_(3)O^(+)`/heat.

Answer

C

Explanation

`R-NH_2 + RCHO underset("amination ") overset("Reductive ")to [R -N= CHR ] overset(H_2 //Pt)to underset( 2^@ "Amine")(R-NH -CH_2 R )`