Concept explainers
(a)
Interpretation:
The structural formula of keto form for the given enol form should be drawn.
Concept Introduction:
A carbonyl compound that has a-hydrogen on a-carbon changes its form to enol through resonance. Both the form stays in equilibrium.
a- hydrogen is the hydrogen which attached to a-carbon for a carbonyl compound. a-carbon is carbon adjacent to the carbonyl carbon. If a compound don’t have any a hydrogen is does not undergoes Keto-Enol tautomerism.
(b)
Interpretation:
The structural formula of keto form for the given enol form should be drawn.
Concept Introduction:
A carbonyl compound that has a-hydrogen on a-carbon changes its form to enol through resonance. Both the form stays in equilibrium.
a- hydrogen is the hydrogen which attached to a-carbon for a carbonyl compound. a-carbon is carbon adjacent to the carbonyl carbon. If a compound don’t have any a hydrogen is does not undergoes Keto-Enol tautomerism.
(c)
Interpretation:
The structural formula of keto form for the given enol form should be drawn.
Concept Introduction:
A carbonyl compound that has a-hydrogen on a-carbon changes its form to enol through resonance. Both the form stays in equilibrium.
a- hydrogen is the hydrogen which attached to a a-carbon for a carbonyl compound. a-carbon is carbon adjacent to the carbonyl carbon. If a compound don’t have any a hydrogen is does not undergoes Keto-Enol tautomerism.
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Chapter 17 Solutions
Introduction to General, Organic and Biochemistry
- 17-47 What is the characteristic structural feature of a hemiacetal? Of an acetal?arrow_forward17-29 Why can’t two molecules of acetone form a hydrogen bond with each other?arrow_forward17-70 What simple chemical test could you use to distinguish between the members of each pair of com pounds? Tell what you would do, what you would expect to observe, and how you would interpret your experimental observation. (a) Benzaldehyde and cyclohexanone (b) Acetaldehyde and acetonearrow_forward
- 17-34 Explain why liquid aldehydes are often stored under an atmosphere of nitrogen rather than in air.arrow_forward17-33 What simple chemical test could you use to distinguish between the members of each pair of com pounds? Tell what you would do, what you would expect to observe, and how you would interpret your experimental observation. (a) Pentanal and 2-pentanone (b) 2-Pentanone and 2-pentanolarrow_forward17-36 Explain why the reduction of an aldehyde always gives a primary alcohol and the reduction of a ketone always gives a secondary alcohol.arrow_forward
- 17-15 Draw structural formulas for the four aldehydes with the molecular formula C5H10O. Which of these aldehydes are chiral?arrow_forward17-11 What is the difference in structure between an aromatic aldehyde and an aliphatic aldehyde?arrow_forward17-28 Show how acetaldehyde can form hydrogen bonds with water.arrow_forward
- 17-72 The following molecule is an enediol; each carbon of the double bond carries an —OH group. Draw structural formulas for the hydroxyketone and the a-hydroxyaldehyde with which this enediol is in equilibrium.arrow_forward17-26 Account for the fact that acetone has a higher boiling point (56°C) than ethyl methyl ether (11°C) even though their molecular weights are almost the same.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning