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Chapter 23: Q44. (page 924)

Question: Use the malonic ester synthesis to prepare each carboxylic acid.

Short Answer

Expert verified

Answer

The starting materials needed to prepare each carboxylic acid by the malonic ester synthesis are shown below.

Step by step solution

01

Definition of acetoacetic ester reaction

The acetoacetic ester synthesis is a method required for the conversion of ethyl acetoacetate to a ketone having one or two alkyl groups on the 伪 -carbon.

02

Retrosynthetic pathway for obtaining the starting materials

To obtain the starting materials, a retrosynthetic analysis is followed, as shown below.

03

Forward pathway for obtaining the product

To obtain the product, a forward reaction scheme analysis is followed, as shown below.

Synthesis of the given compound a.

Synthesis of the given compound b.

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Most popular questions from this chapter

Question:Bupropion, sold under the trade name of Zyban, is an antidepressant that was approved to aid smoking cessation in 1997. Devise a synthesis of bupropion from benzene, organic compounds that have fewer than five carbons, and any required inorganic reagents.

Question: A key step in the synthesis of 尾-vetivone, a major constituent of vetiver, a perennial grass found in tropical and subtropical regions of the world, involved the reaction of compound A and dihalide B with two equivalents of LDA to form C. Draw a stepwise mechanism for this reaction. 尾-Vetivone contains a spiro ring system鈥攖hat is, two rings that share a single carbon atom.

Question: Draw the products of each reaction. Assume excess halogen is present.

Question:What cyclic product is formed from each dihalide using the malonic ester synthesis?

Question:Draw the product of each reaction.
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