-A on2. Which class of pericyclic reactions is the Diels-Alder reaction?What is a (4+ 2) n cycloaddition reaction? Explain•a cycloaddikon where ore reactant moleculee cortriautes 41ele ctrons & the other a electrans3.4. (a) Give the systematic name of the diene in this reaction15-cis)1,4-diphenyl-1,3-betadiene(b) Calculate the difference in the standard Yree energy, AG° (kJ/mol) between the two major conformations ofthis diene? (Write the formula and show your work.) = (-617.920458au-AGO Product- reactantsk017.9259320= 0.00S 47444K/ml.005474qu14.37 KJ/mol1au= alas.KLcis)(trans)5. Give the systematic name of the dienophile in this reaction.Maleie nhydride6. Give the systematic name of the adduct in this reaction.7. What is the melting point of your synthesized Diels-Alder adduct8. Calculate the standard free energy of activation AG # for this reaction (Write the formula and show your work).AG = G75- G°R= (-994.1304ay au)-(-997.194182 au)- 0.039898au= .639898ay• 2625 Ki /ms L = [04.75 KT/9. Calculate the standard free energy change AG° for this reaction (Write the formula and show your work).AGt 997.13004 au(9/9.17392).0378 98Tay a625 s imoltransition statea10. (a) Is this reaction endergonic or exergornic? Explain.(b) What is the nature of bonds 1 and 2 of the cyclic anhydride attached to the cyclohexene ring?

Answered: 2. Which class of pericyclic reactions…

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2. Which class of pericyclic reactions is the Diels-Alder reaction?

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter20: Dienes, Conjugated Systems, And Pericyclic Reactions

Section: Chapter Questions

Problem 20.33P

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Question

-A on
2. Which class of pericyclic reactions is the Diels-Alder reaction?
What is a (4+ 2) n cycloaddition reaction? Explain
•a cycloaddikon where ore reactant moleculee cortriautes 41
ele ctrons & the other a electrans
3.
4. (a) Give the systematic name of the diene in this reaction
15-cis)1,4-diphenyl-1,3-betadiene
(b) Calculate the difference in the standard Yree energy, AG° (kJ/mol) between the two major conformations of
this diene? (Write the formula and show your work.) = (-617.920458au-
AGO Product- reactants
k017.9259320
= 0.00S 47444K/ml.005474qu
14.37 KJ/
mol
1au= alas.KLcis)
(trans)
5. Give the systematic name of the dienophile in this reaction.
Maleie nhydride
6. Give the systematic name of the adduct in this reaction.
7. What is the melting point of your synthesized Diels-Alder adduct
8. Calculate the standard free energy of activation AG # for this reaction (Write the formula and show your work).
AG = G75- G°R
= (-994.1304ay au)-(-997.194182 au)
- 0.039898au= .639898ay• 2625 Ki /ms L = [04.75 KT/
9. Calculate the standard free energy change AG° for this reaction (Write the formula and show your work).
AGt 997.13004 au(9/9.17392)
.0378 98
Tay a625 s imol
transition statea
10. (a) Is this reaction endergonic or exergornic? Explain.
(b) What is the nature of bonds 1 and 2 of the cyclic anhydride attached to the cyclohexene ring?

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