The Diels-Alder reaction is not the only pericyclicreaction involving the cyclic flow of six electrons over sixatoms. Other examples include electrocyclic reactions,Cope rearrangements, and Claisen rearrangements, the(a)?НeatElectrocyclic reactioncurved arrow notations for which are shown here.Complete each of these reactions by drawing theproduct.(b)Cope rearrangementНeat(c)Claisen rearrangementНeat

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Answered: The Diels-Alder reaction is not the…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter15: Radical Reactions

Section: Chapter Questions

Problem 11E

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Similar questions

Identify the pericyclic reactions in the followingreaction schemes. Give the complete reaction name and indicate the course of the reaction with the aid of the arrow notation.
Draw the frontier orbitals for the thermal and photochemical cycloreversion of this reaction
Identify the pericyclic reactions in the followingreaction schemes. Give the complete reactionname and indicate the course of the reaction withthe aid of the arrow notation.
Give the structure(s) of the product(s) of each reaction. Indicate any relative stereochemistry, assuming that each of the Diels-Alder reactions will proceed with endo selectivity. If more than one product is formed, please indicate which one will be the major product or if they will be formed in equal amounts. If no reaction is expected to occur under the indicated conditions, then write "no reaction" or NR, and explain why you would expect nothing to occur. In all cases, equimolar amounts of both components/reagents are present unless indicated otherwise.
Complete the following reactions, clearly indicating regio-and stereochemistry where applicable. In cases, where ortho-and para-products are formed, draw both.
Draw a detailed mechanism and give the products for the following Diels-Alder reaction. Label the Endo and Exo diastereomer.
Which of the following compounds can arise directly from a Diels-Alder reaction? Circle any structures that can. Then, identify the appropriate diene(s) and dienophile(s) that would lead to the compound. Pay attention to E-/Z- stereochemistry in all of the reactants. For those that cannot undergo a Diels-Alder reaction, please explain why.
Give a full curved arrow mechanism for the ring-opening reaction of an epoxide in aqueousacid shown below. Show ALL non-bonded electron pairs and all non-zero formal chargeswhere applicable. (Note: you will need to redraw the structures provided in order to showthe mechanism correctly; non-bonded electron pairs have not been shown, although nonzero formal charges are included.) Be sure to show any stereochemical elements in theproduct(s) correctly.
This is a Diels-Alder reaction between furan + maleic anhydride (endo and exo products). For each cycloaddition product, draw in all hydrogen atoms, and write the molecular formula below.
Name the kind of sigmatropic rearrangement that occurs in each of the following reactions. a. Using arrows, show the electron rearrangement that takes place in each reaction.
For each of the following, write the major product(s) and then draw out each step in the mechanism using curved arrows. Show ALL lone pair electrons and formal charges. Redraw ALL molecules as to show explicitly ALL bonds being broken or formed. Identify the molecular orbital (HOMO) of the nucleophile and the molecular orbital (LUMO) of electrophile involved in the nucleophilic attack. MO diagrams are not necessary..
Explain why free-radical halogenation usually gives mixture of products.

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