3. 4 points Which of the following alkenes is more stable? Explain. 4. 2 points A molecule has two rings, three double bonds, and two triple bonds. How many IHD units does this molecule have?
5. For the following alkenes, indicate which can isomerize to more stable compounds (consider this to be catalyzed by a strong acid) and the structure of the more stable alkene. 6. Rank the following alkenes from least stable (1) to most stable (6) 7. Indicate which of the following cations can rearrange to a more stable structure and provide the structure: OH 8. Give the structure of the major organic product obtained from each reaction shown:
1 = least stable 4= most stable 3. Rank the following alkenes in order to increasing stability. Irasubstituceda 4. Draw the mechanism for the following E2 reactions.
why are benzene rings more stable than alkenes? use diagrams to explain your answer
26. Which of the following alkenes is more stable? Ans: 29. Show the mechanism for the following elimination, assuming that it is a concerted reaction. Өоме - Br Ans: 33. Which of the following is the most reactive in an E2 reaction? Ans: 36. Draw the major product of the following elimination. CI Ans: 39. What is the product of the following elimination? CI Ооме Ans: o o w obwoll
4. Which compound is more stable? Explain your reasoning.
A B Question 3: Which of the alkenes (A - E) is the least stable? Act of my to NH
E. Rank the following alkenes from most (1) to least stable (4)
Recall that Zaitsev’s rule says that more substituted alkenes are more stable. Therefore, propene is less stable than trans-but-2-ene, which is less stable than 2-methylbut-2- ene, which is less stable than 2,3-dimethylbut-2-ene. In Chapter 7, we showed that we could demonstrate this stability ordering by using heats of hydrogenation. a) Does the same apply for other groups, besides alkyl groups? For example, compare the stability of propene, trans-but-2-ene and trans-1-chloroprop-1-ene to compare the effects of adding a chlorine instead of...
Question 1 Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) Question 2 What is the degree of unsaturation of this formula C16H13N2OCI? A. 11 B. 4 C.6 D. 12