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Chapter 23: Q18. (page 924)

Question: How can pentan-2-one be converted into each compound?

Short Answer

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Answers

The pentan-2-one be converted into each compound by the following reactions:

Step by step solution

01

Function of LDA

LDA is a strong and bulky base that abstracts protons from the less hindered site and yields a kinetic product(less substituted product).

Representation of the function of LDA

02

 Step 2: Function of potassium tert-butoxide

Potassium tert-butoxide is a strong base that abstracts protons from the more hindered site and yields a thermodynamic product(more substituted product).

03

Alkylation

Alkylation is the process of the addition of an alkyl group adjacent to a carbonyl group where an alkyl group replaces hydrogen.

04

Formation of required products

The pentan-2-one is converted into each of the compounds below by the following reactions:-

Reaction to get the product a,b

Reaction to get the product b,c

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Most popular questions from this chapter

Question: Treatment of α, β-unsaturated carbonyl compound X with base forms the diastereomer Y. Write a stepwise mechanism for this reaction. Explain why one stereogenic center changes configuration but the other does not.

Question: Draw the products obtained (including stereochemistry) when each compound is treated with LDA, followed by CH3l.

Question: Which C-Hbonds in the following molecules are acidic because the resulting conjugate base is resonance stabilized?

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