JEE Main Chemistry question

The least active electrophile among methyl acetate, acetyl chloride, N,N-dimethylacrylamide and a thioester is

(A)Methyl acetate
(B)Acetyl chloride
(C)N,N-dimethylacrylamideCorrect
(D)A thioester

Answer: (C)

Solution

Acyl-group electrophilicity follows acid halide > anhydride > thioester ≈ ester > amide, since the amide nitrogen's lone pair donates most strongly into

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Question ID VK-139300