For each of the given sigmatropic rearrangement reactions, the type of sigmtropic rearrangement should be identified and denote by using brackets and two numbers. Concept introduction: Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes ( π-system ) , in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic . The Sigmatropic rearrangement reaction is represented by using two numbers in the brackets . The numbers represent the numbers of atoms separating the σ-bond which is breaking and the σ -bond which is forming.

Question

Want to see the full answer?

Answer 1

Question

Chapter 16.10, Problem 23CC

(a)

Interpretation Introduction

Interpretation:

For each of the given sigmatropic rearrangement reactions, the type of sigmtropic rearrangement should be identified and denote by using brackets and two numbers.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic.

The Sigmatropic rearrangement reaction is represented by using two numbers in the brackets. The numbers represent the numbers of atoms separating the σ-bond which is breaking and the σ-bond which is forming.

(b)

Interpretation Introduction

Interpretation:

For each of the given sigmatropic rearrangement reactions, the type of sigmtropic rearrangement should be identified and denote by using brackets and two numbers.

Concept introduction:

Sigmatropic rearrangement reaction is a pericyclic reaction of polyenes (π-system), in which one σ-bond is formed and another σ-bond is broken and remaining π-bonds are shifting their positions. Thereby the transition state is cyclic.

The Sigmatropic rearrangement reaction is represented by using two numbers in the brackets. The numbers represent the numbers of atoms separating the σ-bond which is breaking and the σ-bond which is forming.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Understanding how substituents activate Rank each of the following substituted benzene molecules in order of which will react fastest (1) to slowest (4) by electrophilic aromatic substitution. Explanation HN NH2 Check X (Choose one) (Choose one) (Choose one) (Choose one) © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center A

Identifying electron-donating and electron-withdrawing effects on benzene For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene. Inductive Effects Resonance Effects Overall Electron-Density Molecule CF3 O donating O donating O withdrawing O withdrawing O no inductive effects O no resonance effects electron-rich electron-deficient O similar to benzene CH3 O donating O withdrawing O no inductive effects O donating O withdrawing Ono resonance effects O electron-rich O electron-deficient O similar to benzene Explanation Check Х © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center

* Hint: Think back to Chem 1 solubility rules. Follow Up Questions for Part B 12. What impact do the following disturbances to a system at equilibrium have on k, the rate constant for the forward reaction? Explain. (4 pts) a) Changing the concentration of a reactant or product. (2 pts) b) Changing the temperature of an exothermic reaction. (2 pts) of