See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

CH2 CH CH O NaBH4 alc. CH2 CH CH2OH Unsaturated alcohol (I) C6H5CH O H2N Ph pH(4-5) C6H5CH N Ph Schiff's base (II) + C C6H5 C H3 O HN CH3 CH2CH3 pH(4-5) C6H5 C H2C N CH3 CH2CH3 Enamine (III) + R CH O 2RCH2 H+ R HC OCH2R OCH2R (IV) + Acetal