Chapter 21.1, Problem 4P

Interpretation Introduction

Interpretation:

The isomeric products of the chlorination of $\text{2-}$ butanone have to be stated. The structural formulas for the enol intermediates of $\text{2-}$ butanone have to be drawn. Also, the reaction mechanism of each enol intermediate with ${\text{Cl}}_{\text{2}}$ has to be shown using curved arrows to show the electrons flow.

Concept Introduction:

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Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond.

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Enols are seen as an alkene with a powerful electron donating substituent. They are even more reactive as compared to a simple alkene due to the presence of the hydroxyl group.

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The formation of enol occurs when a molecule contains protons on its alpha carbon atom. The extraction of protons takes place from the alpha carbon atom of the molecule to form an enol.