Chapter 11.3, Problem 11.9P

(a)

Interpretation Introduction

Interpretation:

The given pair of alkenes as constitutional isomers or stereoisomers has to be labeled.

    ${\text{CH}}_{\text{3}}{\text{CH=CHCH}}_{\text{2}}{\text{CH}}_{\text{3}}$ and ${\text{CH}}_{\text{2}}{\text{=CHCH}}_{\text{2}}{\text{CH}}_{\text{2}}{\text{CH}}_{\text{3}}$

Concept Introduction:

Constitutional isomers are the isomer compounds which have the same molecular formula and different in connectivity. To predict whether two compounds are constitutional isomers, need to count the number of each atom in both compounds and look how the atoms are arranged.

Stereoisomers are the isomer compounds which differ only in special arrangements or three-dimensional arrangements of atoms.

(b)

Interpretation Introduction

Interpretation:

The given pair of alkenes as constitutional isomers or stereoisomers has to be labeled.

    

Concept Introduction:

Refer to part (a).