Which of the following reactions will NOT give primary amine as the product? (A) CH3CN ⎯⎯⎯⎯⎯ → 4 3 ( — NEET Chemistry Past Papers Chemistry Question
Question
Which of the following reactions will NOT give primary amine as the product? (A) CH3CN ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O Product (B) CH3NC ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O Product (C) CH3CONH2 ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O Product (D) CH3CONH2 ⎯⎯⎯⎯⎯→ 2 Br /KOH Product
Answer: B
💡 Solution & Explanation
(1) CH3–CN ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O CH3–CH2–NH2 1º Amine (2) CH3NC ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O CH3–NH–CH3 2º Amine (3) CH3–C– NH2 O ⎯⎯⎯⎯⎯ → 4 3 (i)LiAlH (ii)H O CH3–CH2–NH2 1º Amine (4) CH3–C– NH2 O − + ⎯⎯⎯⎯⎯ → 2 Br OH CH3–NH2 1º Amine
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