Chapter 8, Problem 51PP

Interpretation Introduction

Interpretation:

The configuration of each $\text{C}\text{=}\text{C}$ double bond in given compound should be identified and designated with E-Z designators.

Concept introduction:

E-Z designators are used as like cis-trans terminology for non-similar groups attached alkenes.

In E-Z designations, the groups attached to vinylic positions are checked by their priority on the basis of higher molecular weight. If the higher priority groups are on the same sides, then the configuration is designated as Z. If the higher priority groups are on the opposite sides, then the configuration is designated as E.

If the attached atoms are same on the vinylic carbons, then priority goes to second atoms after the attached atoms.

To identify: the configuration of each $\text{C}\text{=}\text{C}$ double bond in given compound with using E-Z designators.