Organic Chemistry 2 Midterm - Part 4 of 4
SAMPLE
Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:
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22. Carboxylic Acid Derivatives: NAS / Lactones, Lactams and Cyclization Reactions / Problem 6
5-hydroxy-3-methylpentanoic acid forms a cyclic ester (lactone) when it is mixed with a trace amount of acid.
(i) Write the structure of the lactone.
(ii) Suggest a plausible mechanism for its formation.
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