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Chapter 24: Q.31. (page 962)

Question: Draw the product formed in each directed aldol reaction.

Short Answer

Expert verified

Answer

Step by step solution

01

LDA

Lithium diisopropylamide (LDA) is a strong base with the molecular formula [CH32CH]2NLi. In combination with H2O, it gives directed aldol reaction effectively.

02

Cross-aldol reaction

The base abstracts the hydrogen ion H+ from the enolizable aldehyde to initiate the reaction.

03

Product of the given reaction

a. The product of the given reaction is shown hereunder.

Product of a.

b. The product of the given reaction is shown hereunder.

Product of b.

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Most popular questions from this chapter

Question: Identify the structures of C and D in the following reaction sequence.

Question: What dicarbonyl compound is needed to prepare each compound by an intramolecular aldol reaction?

Question: Draw a stepwise mechanism for the following reaction. (Hint: Two Michael reactions are needed.)

Question: What starting materials are needed to synthesize each compound using an aldol or similar reaction?

Question: Draw the products when each pair of compounds is treated with CH3CH2O-,CH3CH2OH in a Robinson annulation reaction.
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