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Question 56

Which of the following reagent(s) used for the conversion?

A: $$\text{CH}_3\text{COCH}_2\text{CH}_2\text{CO}_2\text{Et} \xrightarrow{\text{glycol}} \text{Acetal-Ester} \xrightarrow{\text{LiAlH}_4} \text{Acetal-Alcohol} \xrightarrow{\text{H}_3\text{O}^+} \text{CH}_3\text{COCH}_2\text{CH}_2\text{CH}_2\text{OH}$$

B: $$\text{CH}_3\text{COCH}_2\text{CH}_2\text{CO}_2\text{Et} \xrightarrow{\text{glycol}} \text{Acetal-Ester} \xrightarrow{\text{NaH, then H}_3\text{O}^+} \text{CH}_3\text{COCH}_2\text{CH}_2\text{CO}_2\text{Et} \quad \text{(No reduction occurs)}$$

C: $$\text{CH}_3\text{COCH}_2\text{CH}_2\text{CO}_2\text{Et} \xrightarrow{\text{LiAlH}_4} \text{CH}_3\text{CH(OH)CH}_2\text{CH}_2\text{CH}_2\text{OH} + \text{EtOH}$$

D: $$\text{CH}_3\text{COCH}_2\text{CH}_2\text{CO}_2\text{Et} \xrightarrow{\text{NaBH}_4} \text{CH}_3\text{CH(OH)CH}_2\text{CH}_2\text{CO}_2\text{Et}$$

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