8. The nature of cyclopentadiene (right) was discussed in detail in both lectureand the textbook. The predominant form of stored cyclopentadiene is a dimerformed by the Diels-Alder reaction of two molecules of cyclopentadiene, one ofwhich serves as the diene and the other as the dienophile.a. Draw the mechanism for the dimerization of cyclopentadiene. [6 pts]Show electron flow with 'curly arrows!Draw the structure of the dimer.cyclopentadieneb. Succinctly explain how cyclopentadiene can be used in a Diels-Alder reaction with propene(CH3CH=CH2) even though cyclopentadiene is initially the dimer and thus not a diene. Write incomplete sentences and earn a bonus point for using the correct name for the first step of the reactionsequence. Do NOT exceed the given space. [3 pts]c. Draw the product of the Diels-Alder reaction between cyclopentadiene and propene. [2 pts]

Answered: 8. The nature of cyclopentadiene…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter18: Aromaticity

Section: Chapter Questions

Problem 13E

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7. At room temperature cyclopentadiene reacts with itself to form dicyclopentadiene in a Diels-Alder reaction. a) draw the self reaction of cyclopentadiene 20°C. b) When dicyclopentadiene is heated to boiling (170°C), the retor-Diels-Alder reaction occurs producing 2 moles of cyclopentadiene. Explain this observation in terms of free energy, enthalpy and entropy. c) If the AHxn = -75 kJ/mol and the ASpxn = -226 J/mol K, What temperature would be required for the reaction to be at equilibrium (Keq = 1).
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Choose the correct option. 1. Which of the following reactions best describes the Diels-Alder reaction?A)electrocyclic reactionB)cycloaddition reactionC)sigmatropic reactionD)radical reactionE)nucleophilic substitution reaction 2.Which of the following statements best describes the theory of Conservation of Orbital Symmetry?A)Molecular orbital of the transition state must be similar to that of the reactant.B)Molecular orbital of the transition state must be similar to that of the product.C)Only s orbitals from reactants and products are utilized.D)Molecular orbitals of reactant and product must have similar symmetry.E)Molecular orbitals of reactant and product must have different symmetry. 3.Through what type of single pericyclic reaction did the reaction proceed? 5-methylcyclopenta-1,3-diene to 1-methylcyclopenta-1,3-dieneA)[1,2] sigmatropic hydrogen migrationB)[1,3] sigmatropic hydrogen migrationC)[1,4] sigmatropic hydrogen migrationD)[1,5] sigmatropic hydrogen migrationE)none of the…
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The below reaction is a retro Diels-Alder reactions. Is is the reverse process of a Diels-Alder reaction with the formation of a diene and dienophile from some cyclohexene. It can be accomplished spontaneously with heat. Determine the product of the reaction. 4 Heat
In the diels-Alder cycloaddition, the role of 1,3-butadiene is a....while therole of maleic anhydride is..... dienophile,dienophile dienophile,diene diene,dienophile diene,diene
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[Review Topics] [References] Draw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form the product shown. Diene + Dienophile CH3O CH₂ I wwwwwww
Which of the following correctly describes the known mechanism of the Diels-Alder reaction? Select one: A. A strained 4-member ring intermediate is formed which rearranges to a 6- member ring. B. A di-radical, 6-member ring intermediate is formed. C. The mechanism is a one-step process with bond-making, bond breaking changes occurring simultaneously. D. A zwitterion species (molecule with full +1 and -1 charges) is rapidly formed as an intermediate. E. A resonance-stabilized carbocation intermediate is formed in a slow step.
Please don't provide handwritten solution ...
I know the product and the arrow pushing for both reactions, but I need assistance with the FMO energy diagrams. I know the first one is a normal Diels alder reaction and the second one is Inverse electron demand Diels–Alder reaction. But, I am confused about how to draw them out.
12. Show the mechanism and the product of the following Diels-Alder reaction. (2) heat Х atic

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