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Chapter 24: Q.3. (page 962)

Question: What unsaturated carbonyl compound is formed by dehydration of each β-hydroxy carbonyl compound?

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

Dehydration reaction

A dehydration reaction is the reverse of a hydration reaction. It involves the removal of a water molecule from the compound.

02

Formation of products

a. The reaction of 3-hydroxycyclohexanone with a base results in the formation of cyclohex-2-enone.

The reaction is shown below:

Product formation in a

b. The reaction of 3-hydroxy-2,4-diphenylbutanal with a base results in the formation of E or Z products.

The reaction is shown below:

Product formation in b

c. The reaction of 4-hydroxy-4-methylpentan-2-one with a base results in the formation of 4-methylpent-3-en-2-one.

The reaction is shown below:

Product formation in c

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