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When acetic acid is treated with isotopically labeled
Chapter 21, Problem 21.6(choose chapter or problem)
When acetic acid is treated with isotopically labeled water ( 18O, shown in red) in the presence of a catalytic amount of acid, it is observed that the isotopic label becomes incorporated at both possible positions of acetic acid. Draw a mechanism that accounts for this observation. OH O OH O OH O [H+] H2O +
Questions & Answers
QUESTION:
When acetic acid is treated with isotopically labeled water ( 18O, shown in red) in the presence of a catalytic amount of acid, it is observed that the isotopic label becomes incorporated at both possible positions of acetic acid. Draw a mechanism that accounts for this observation. OH O OH O OH O [H+] H2O +
ANSWER:Step 1 of 3
This exercise tells us that when acetic acid is treated with isotopically labeled water (18O, shown in red) in the presence of a catalytic amount of acid, it is observed that the isotopic label becomes incorporated at both possible positions of acetic acid.
We’re asked to draw a mechanism that accounts for this observation.