Q7 · CSIR NET Chemistry, June 2014
Paper: CSIR NET June 2014 · Subject: Organic Chemistry · Chapter: Reagents, Reaction Mechanisms & Named Reactions · Topic: Reagents, Reaction Mechanisms & Named Reactions – General · Marks: 2 · Difficulty: Medium
The products A and B in the following reaction sequence are: 
→ 
(B)
→ (B)(a)
B = 
B = (b)
B = 
B = (c)A = 
(d)
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Methyl chloroformate/Et₃N converts benzoic acid into the mixed carbonic anhydride (A); cyclohexylamine attacks the more electrophilic benzoyl carbonyl, releasing CO₂ and MeOH, to give N-cyclohexylbenzamide (a).
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