Chapter 6, Problem 17E

Interpretation Introduction

Interpretation: Each of the double bond needs to be labeled and whether it is E (trans), Z(cis) or none needs to be identified.

Concept introduction:

As per IUPAC rules, the naming of alkene is cis or trans based on arrangement of groups about the longest chain of carbon atoms. If the chain is not long and has only two carbon atoms about the double bond, the CIP rules are followed which allows the naming to have prefix of E or Z before the compound name based on the priority. This is applied when it is not possible to have naming as cis or trans.