NEET2026ChemistryChapterActual
Identify the major product 'P' formed in the given reaction sequence.
Options
- AN-cyclohexylbenzamide
- BN-phenylcyclohexanamine
- CN-benzylcyclohexanamine
- DN-methylcyclohexanamine
Correct answer
C. N-benzylcyclohexanamine
Step-by-step solution
In the first step, cyclohexylamine undergoes benzoylation with benzoyl chloride ( C ₆ H ₅ COCl ) in the presence of aqueous NaOH to form N-cyclohexylbenzamide. C ₆ H ₁₁ NH ₂ + C ₆ H ₅ COCl aq. NaOH C ₆ H ₁₁ NH - CO - C ₆ H ₅ In the next step, the amide is reduced by LiAlH ₄ in ether, followed by hydrolysis. The carbonyl group ( > C=O ) is reduced to a methylene group ( - CH ₂- ). C ₆ H ₁₁ NH - CO - C ₆ H ₅ [ (iii) H ₂ O ] (ii) LiAlH ₄ , ether C ₆ H ₁₁ NH - CH ₂- C ₆ H ₅ The final product 'P' is N-benzylcyclohexanam