MCAT Organic Chemistry Question 90: Answer and Explanation
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Question: 90
15. Imines naturally tautomerize to form:
- A. oximes.
- B. hydrazones.
- C. semicarbazones.
- D. enamines.
Correct Answer: D
Explanation:
During tautomerization, the double bond between the carbon and nitrogen in an imine is moved to lie between two carbons. This results in an enamine—a compound with a double bond and an amine.