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Which of the following amines does not undergo benzoylation?

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in Chemistry – Class 12 by (188k points)
Which of the following amines does not undergo benzoylation?

(a) N-Methylethanamine

(b) N-Ethylethanamine

(c) N,N-Dimethylethanamine

(d) N-Methylbenzenamine

I had been asked this question in class test.

My query is from Amines Chemical Reactions topic in division Amines of Chemistry – Class 12

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Right answer is (c) N,N-Dimethylethanamine

For explanation I would say: For benzoylation to take place, there should be a hydrogen atom present at the nitrogen of the amine for the C6H5CO^– group to replace. This is not the case in tertiary amines like N,N-dimethylethanamine and hence they do not undergo benzoylation.

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