Chapter 8, Problem 8.17P

Interpretation Introduction

Interpretation:

The substrate that would undergo $\text{E2}$ reaction to yield a diastereomer of the product alkene in Equation $\text{8-24}$ is to be determined.

Concept introduction:

In case of $\text{E2}$ elimination, the eliminating groups (leaving group $\text{L}$ and $\text{H}$) must be anti to each other. The stereochemistry of other atoms or groups bonded on $\text{H}-\text{C}-\text{C}-\text{L}$ is retained in the product.