The observation corresponding to the reaction of 1 , 3 − diphenyl − 2 − propanone with Br 2 and its further characterization is to be explained. Concept introduction: Halogenation reaction of carbonyl compounds takes place in the presence of Cl 2 , Br 2 , SO 2 Cl 2 and so on. It may result in the formation of enol and enolate ion in case of saturated compounds. Tautomers are isomers which differ only in the position of the protons and electrons of the double bond of the electronegative atom in the compound. This phenomenon which involves simple proton transfer in an intramolecular fashion is known as tautomerism. The very common example of tautomerism is Keto-enol tautomerism. It is possible in either way acid or base-catalyzed.

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Chapter 22, Problem 22.67AP

Interpretation Introduction

Interpretation:

The observation corresponding to the reaction of 1,3−diphenyl−2−propanone with Br2 and its further characterization is to be explained.

Concept introduction:

Halogenation reaction of carbonyl compounds takes place in the presence of Cl2, Br2, SO2Cl2 and so on. It may result in the formation of enol and enolate ion in case of saturated compounds. Tautomers are isomers which differ only in the position of the protons and electrons of the double bond of the electronegative atom in the compound. This phenomenon which involves simple proton transfer in an intramolecular fashion is known as tautomerism. The very common example of tautomerism is Keto-enol tautomerism. It is possible in either way acid or base-catalyzed.

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