Chapter 9, Problem 9.17P

Interpretation Introduction

Interpretation:

The structure of carbon-anion intermediate for the given reaction and its stability is to be stated. The resonance structures of the carbon-anion intermediate are also to be stated.

Concept introduction:

$\text{E2}$ reaction is an base promoted $\beta -\text{elimination}$ reaction. This reaction follows concerted reaction mechanism. In this reaction a $\beta \text{-}$ proton is taken by the base and simultaneously a halide ion is removed. It can be understood that bond breaking of hydrogen and halide ion and double bond formation is occurring simultaneously.