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Chapter 24: Q.19. (page 962)

Question: Draw the products of each reaction.

Short Answer

Expert verified

Answer

a.

b.

Step by step solution

01

Crossed Claisen reaction

The reaction between an ester and diethyl ester or chloroformate also falls in the category of Crossed Claisen reaction.

02

Crossed Claisen reaction mechanism

The reaction between ketone and chloroformate is represented below:

Claisen reaction

03

Products of the given reaction

a. The reaction of the ester with given reagents is shown below.

Reaction a.

b. The reaction of the ester with given reagents is shown below.

Reaction b.

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Most popular questions from this chapter

Question: (a) Draw a stepwise mechanism for the reaction of ethyl hexa-2,4-dienoate with diethyl oxalate in the presence of base.

(b) How does your mechanism explain why a new carbon-carbon bond forms on C6?

(c) Why is this reaction an example of a crossed Claisen reaction?

Question: Draw the aldol product formed from each compound.

Question:One step in a recent short synthesis of a prostaglandin (Section 19.6) involves the conversion of succinaldehyde to the bicyclic hemiacetal X. Draw a stepwise mechanism for this process. (Hint: The mechanism begins with an intermolecular aldol reaction.)

Question:What starting materials are needed to synthesize each compound by a crossed Claisen reaction?

Question: Devise a synthesis of each compound from CH3CH2CH2CO2Et, benzene, and alcohols having ≤ 2 C's. You may also use any required organic or inorganic reagents.
See all solutions

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