Amines
In Hinsberg's test, which class of amines does not form a sulfonamide derivative with benzenesulfonyl chloride under ordinary conditions?
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About This Question
- Subject
- chemistry
- Chapter
- organic compounds containing nitrogen
- Topic
- amines
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Tertiary amines
Hinsberg reagent (benzenesulfonyl chloride) reacts with amines that possess at least one N-H bond. Primary and secondary amines contain N-H and form sulfonamides. Tertiary amines lack N-H, so they cannot form sulfonamide derivatives in this test. This difference allows separation and identification of amine classes in mixtures.
This medium difficulty chemistry question is from the chapter organic compounds containing nitrogen, covering the topic of amines. It appeared in the 2025 exam.
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