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Chapter 24: Q.5. (page 962)

Question: What aldehyde or ketone is needed to prepare each compound by an aldol reaction?

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

Aldol reaction

The breaking of alpha and beta carbon produces other carbonyl compounds that react and produce the same compound via aldol reaction.

02

Formation of carbonyl compounds

a.

The ketone or aldehyde required to prepare given compound via aldol reaction is shown below:

Required aldehyde or ketone in a

b.

The ketone or aldehyde required to prepare given compound via aldol reaction is shown below:

Required aldehyde or ketone in b

c.

The ketone or aldehyde required to prepare given compound via aldol reaction is shown below:

Required aldehyde or ketone in c

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Most popular questions from this chapter

Question: What cyclic product is formed when each 1,5-dicarbonyl compound is treated with aqueous OH?

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

Question: What starting materials are needed to synthesize each compound by a Robinson annulation?

Question: Answer the following questions about 2-acetylcyclopentanone.

a. What starting materials are needed to form 2-acetylcyclopentanone by a Claisen reaction that forms bond (a)?

b. What starting materials are needed to form 2-acetylcyclopentanone by a Claisen reaction that forms bond (b)?

c. What product is formed when 2-acetylcyclopentanone is treated with NaOCH2CH3, followed by CH3I?

d. Draw the Robinson annulation product(s) formed by reaction of 2-acetylcyclopentanone with methyl vinyl ketone (CH2=CHCOCH3).

e. Draw the structure of the most stable enol tautomer(s).

Question: 4-Methylpyridine reacts with benzaldehyde (C6H5CHO)in the presence of a base to form A.

(a) Draw a stepwise mechanism for this reaction.

(b) Would you expect 2-methylpyridine or 3-methylpyridine to undergo a similar type of condensation reaction? Explain why or why not.
See all solutions

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