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Chapter 27.SE, Problem 15MP
Interpretation Introduction

Interpretation:

A mechanism for the conversion of ψ-ionone to β-ionone on treatment with acid is to be given.

Concept introduction:

The steps involved in the conversion of ψ-ionone to β-ionone on treatment with acid are i) Protonation of a double bond by the acid to yield a carbocation ii) Ring closure to yield a cyclic carbocation iii) Deprotonation.

To give:

The mechanism for the conversion of ψ-ionone to β-ionone on treatment with acid.

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Chapter 27 Solutions

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