Which of the Following Is Least Likely to Undergo a Smooth

question 91

Multiple Choice

Which of the following is least likely to undergo a smooth crossed Claisen condensation with methyl pentanoate?

• A) (CH₃)₃CCO₂CH₃
• B) PhCH₂CO₂CH₃
• C) PhCO₂CH₃
• D) HCO₂CH₃
• E) (CH₃O)₂CO

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