Chapter 23: Q5. (page 924)
Question: Which C-Hbonds in the following molecules are acidic because the resulting conjugate base is resonance stabilized?




Short Answer
Answer
The most acidic C-H bonds are shown below.
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Chapter 23: Q5. (page 924)
Question: Which C-Hbonds in the following molecules are acidic because the resulting conjugate base is resonance stabilized?




Answer
The most acidic C-H bonds are shown below.
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Question: Acyclovir is an effective antiviral agent used to treat the herpes simplex virus. (a) Draw the enol form of acyclovir, and explain why it is aromatic. (b) Why is acyclovir typically drawn in its keto form, despite the fact that its enol is aromatic?

Question: Draw the enol or keto tautomer(s) of each compound.






Question: Both pentane-2,4-dione and ethyl acetoacetate have two carbonyl groups separated by a single carbon atom. Although an equilibrium mixture of pentane-2,4-dione tautomers contains 76% of the enol forms, an equilibrium mixture of ethyl acetoacetate tautomers contains only 8% of the enol forms. Suggest a reason for this difference.


Question: Which carbonyl compound in each pair exhibits the higher percentage of the enol tautomer?


Question: Synthesize each compound from ethyl acetoacetate. You may use any other organic or inorganic reagents.
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