Chapter 24: Q.3. (page 962)
Question: What unsaturated carbonyl compound is formed by dehydration of each β-hydroxy carbonyl compound?
Short Answer
Answer
a.
b.
c.
Step by step solution
Dehydration reaction
A dehydration reaction is the reverse of a hydration reaction. It involves the removal of a water molecule from the compound.
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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