A mechanism for the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones is to be proposed. Concept introduction: The steps involved in the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones are i) abstraction of a proton from the Î³-carbon to form a resonance stabilized enolate ion ii) Protonation at the Î±- carbon iii) Abstraction of a proton from other Î±- carbon to form a different resonance stabilized enolate ion iv) Protonation of the Î³- carbon. To propose A mechanism for the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones.

Question

Draw all resonance structures for the following ion: CH₂ Draw all resonance structures on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars, including charges where needed. The single bond is active by default. 2D ד CONT HD EXP CON ? 1 [1] Α 12 Marvin JS by Chemaxon A DOO H C N Br I UZ OSPF

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Question

Chapter 22.SE, Problem 27MP

Interpretation Introduction

Interpretation:

A mechanism for the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones is to be proposed.

Concept introduction:

The steps involved in the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones are i) abstraction of a proton from the Î³-carbon to form a resonance stabilized enolate ion ii) Protonation at the Î±- carbon iii) Abstraction of a proton from other Î±- carbon to form a different resonance stabilized enolate ion iv) Protonation of the Î³- carbon.

To propose

A mechanism for the reversible equilibrium isomerization of 2-substituted-2-cyclopentanones to 5-substituted-2-cyclopentanones.

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