The most reasonable structure of naringenin chalcone is to be determined on the basis of the given hypothesis. Concept Introduction: In intramolecular Claisen condensation, a new five or six membered ring is formed. An enolate acts as a nucleophile and a new carbon-carbon bond is formed between a carbonyl carbon and the enolate. Other carbonyl groups, if present, remain intact. They are converted to enol form if the enol form is more stable compared to the keto form.

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Chapter 25, Problem 36DSP

Interpretation Introduction

Interpretation:

The most reasonable structure of naringenin chalcone is to be determined on the basis of the given hypothesis.

Concept Introduction:

In intramolecular Claisen condensation, a new five or six membered ring is formed.

An enolate acts as a nucleophile and a new carbon-carbon bond is formed between a carbonyl carbon and the enolate.

Other carbonyl groups, if present, remain intact.

They are converted to enol form if the enol form is more stable compared to the keto form.

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