3. Treatment of 1-phenyl-2-propenone with a strong base such as LDA does not yield an anion, even though it contains a hydrogen on the carbon atom next to the carbonyl group. Explain. H CH₂ 1-Phenyl-2-propenone

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3. Treatment of 1-phenyl-2-propenone with a strong base such as LDA does not yield an anion, even though it
contains a hydrogen on the carbon atom next to the carbonyl group. Explain.
(a) Ethyl pentanoate
H
Ethyl 2-methylbutanoate
CH₂
. Which of the following compounds can be prepared by a malonic ester synthesis? Show the alkyl halide you
would use in each case.
1-Phenyl-2-propenone
(b) Ethyl 3-methylbutanoate
(d) Ethyl 2,2-dimethylpropanoate
Transcribed Image Text:3. Treatment of 1-phenyl-2-propenone with a strong base such as LDA does not yield an anion, even though it contains a hydrogen on the carbon atom next to the carbonyl group. Explain. (a) Ethyl pentanoate H Ethyl 2-methylbutanoate CH₂ . Which of the following compounds can be prepared by a malonic ester synthesis? Show the alkyl halide you would use in each case. 1-Phenyl-2-propenone (b) Ethyl 3-methylbutanoate (d) Ethyl 2,2-dimethylpropanoate
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