Chapter 20, Problem 20.24P

Interpretation Introduction

Interpretation:

The model to explain the reason for the fact that the given $\beta \text{-}$ keto acid resists decarboxylation is to be stated.

Concept introduction:

Bredt's rule states that “it is impossible to have a compound that has double bond on the bridgehead carbon atom”.

The decarboxylation reaction is a type of reaction in which a compound loses ${\text{CO}}_{\text{2}}$ from carboxylic acid. A general decarboxylation reaction is shown below.

$\text{RCOOH}\to \text{R}-\text{H}+{\text{CO}}_{\text{2}}$