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Chapter 24: Q.33. (page 962)

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

Short Answer

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Answer

Step by step solution

01

Identify the α and β  carbons to the carbonyl group

The bond between the 伪and尾carbons to the carbonyl group is cleaved. The 伪-carbon is then added with a hydrogen atom.

02

Addition to the  β-carbon

Upon the cleavage of the bond between the 伪and尾 carbons, the role="math" localid="1649052581778" 尾-carbon is added with a =Oif the bond between the 伪and尾 carbons was a double bond.

However, if the 伪and尾 carbons had a single bond then, the OH group on the 尾-carbon is converted to the carbonyl C=O group.

03

Product of the given reaction

a. The starting materials of the product are detected hereunder.

starting materials of a.


b. The starting materials of the product are detected hereunder.

starting materials of b.


c. The starting materials of the product are detected hereunder.

starting materials of c.


d. The starting materials of the product are detected hereunder.

starting materials of d.

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Most popular questions from this chapter

Question: In theory, the intramolecular aldol reaction of 6-oxoheptanal could yield the three compounds shown. It turns out, though, that 1-acetylcyclopentene is by far the major product. Why are the other two compounds formed in only minor amounts? Draw a stepwise mechanism to show how all three products are formed.

Question: Draw the products formed in each crossed aldol reaction.

a.

b.

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