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Chapter 22: Q70P-A (page 1204)

Question: Predict the products of these reaction sequences.

a.

Short Answer

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Answer

Step by step solution

01

Reaction with LDA

LDA is the lithium di-isopropylamide (C4H9Li )it is the strong base used to protonate the acidic hydrogen to form lithium enolate.

02

Alkylation of the enolate ion

In reaction with the LDA formation of lithium, enolate occurs followed by the reaction of alkyl halide formation of the alkylated product occur.

03

Formation of the product

After the reaction with LDA formation of anionic species take place. Then finally removal of halogen takes place allylic halide. And the substitution of allyl halide takes place.

The formation of the product is as follows:

Product Formation

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Most popular questions from this chapter

Question: Predict the products of the following reactions

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Propose mechanisms for the two Dieckmann condensations just shown.

Show the products of the reactions of these carboxylic acids with PBr3/Br2before and after hydrolysis.

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(A true story.) Chemistry lab students added an excess of ethyl magnesiumbromide to methyl furoate, expecting the Grignard reagent to add twice and form the tertiary alcohol. After water workup, they found that the product was a mixture of two compounds. One was the expected product having two ethyl groups, but the unexpected product had added three ethyl groups. Propose a mechanism to explain the formation of the unexpected product.

Show how the following ketones might be synthesized by using the acetoacetic ester synthesis.
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