Organic Chemistry
Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
bartleby

Concept explainers

Question
Book Icon
Chapter 13, Problem 11PP
Interpretation Introduction

Interpretation:

The transition states of exo and endo Diels Ander reactions of maleic anhydride with cyclopentadiene are to be drawn. Also, the transition state that leads to only one enantiomer need to be shown in each.

Concept introduction:

A Diels Ander reaction is one between a conjugate diene and a reactant containing a double bond (dienophile) to form a product. The product is called adduct.

Diels Ander reactions are highly stereospecific. The configuration of the dienophile is retained in the product and the reaction is a syn addition reaction.

The dienes react with dienophiles in cis forms rather than trans forms.

Endo and exo refer to the orientation of the dienophile and its electron-withdrawing group when it reacts with a diene in a Diels Ander reaction.

Endo is favored in the transition state of a Diels Ander reaction because it has a lower energy.

Blurred answer
Students have asked these similar questions
The diene lactone shown in part (a) has one electron-donating group (¬OR) and one electron-withdrawing group(C“O). This diene lactone is sufficiently electron-rich to serve as the diene in a Diels–Alder reaction.(a) What product would you expect to form when this diene reacts with methyl acetylenecarboxylate, a strong dienophile?
Using one or more of the following compounds as starting materials or products illustrate, with an example, each of the following type of pericyclic reactions. Your answer should include curved arrow mechanisms. (i) a disrotatory thermal electrocyclic reaction (ii) a conrotatory photochemical electrocyclic reaction (iii) a [4+2] cycloaddition (iv) a [3,3]-sigmatropic rearrangement
8. (a) Benzene derivatives exhibit medium to strong absorption in UV-region. Explain why aniline and phenoxide ion have strong UV-absorptions.

Chapter 13 Solutions

Organic Chemistry

Knowledge Booster
Background pattern image
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
  • Text book image
    Organic Chemistry
    Chemistry
    ISBN:9781305580350
    Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
    Publisher:Cengage Learning
    Text book image
    Organic Chemistry
    Chemistry
    ISBN:9781305080485
    Author:John E. McMurry
    Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9781305080485
Author:John E. McMurry
Publisher:Cengage Learning