Concept explainers
(a)
Interpretation: The diene that has the larger heat of hydrogenation is to be identified.
Concept introduction: Diene is a hydrocarbon that contains two
Conjugated diene consists of two double bonds that are separated by a single bond, whereas isolated diene also consists of two double bond but they are separated by two more carbon atoms.
The example that shows the basic difference between conjugated diene and isolated diene is shown below.
Figure 1
The stability of conjugated diene is more than isolated diene. Due to which the heat of hydrogenation is smaller for conjugated diene, whereas heat of hydrogenation for isolated diene is larger.
(b)
Interpretation: The diene that has the larger heat of hydrogenation is to be identified.
Concept introduction: Diene is a hydrocarbon that contains two
Conjugated diene consists of two double bonds that are separated by a single bond, whereas isolated diene also consists of two double bond but they are separated by two more carbon atoms.
The example that shows the basic difference between conjugated diene and isolated diene is shown below.
Figure 1
The stability of conjugated diene is more than isolated diene. Due to which the heat of hydrogenation is smaller for conjugated diene, whereas heat of hydrogenation for isolated diene is larger.
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
Organic Chemistry (6th Edition)
- Draw the products formed when each diene is treated with one equivalent of HCI. a. b. d.arrow_forwardWhich undergoes electrophilic substitution on the ring most rapidly? a. b. CHO d. e.arrow_forwardDraw the product of each Diels-Alder reaction and indicate the stereochemistry at all stereogenic centers. A a. b.arrow_forward
- 25.38 Draw the product of each intramolecular cycloaddition. а. hv [2 + 2] b. A [4 + 2] OSIR3 с. A [6 + 4] d. hv [2 + 2] Rage 11arrow_forwardRank the following in order of decreasing Diels-Alder reactivity. A B Carrow_forwardWhat product is formed by the [3,3] sigmatropic rearrangement of each compound? a. b.arrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning