Chapter 9, Problem 9.43SP

(a)

Interpretation Introduction

To draw: The structure of unknown compound $\text{W}$ having molecular formula ${\text{C}}_8{\text{H}}_{12}$.

Interpretation: The structure of unknown compound $\text{W}$ having molecular formula ${\text{C}}_8{\text{H}}_{12}$ is to be drawn.

Concept introduction: Catalytic hydrogenation is the process used to introduce hydrogen atoms in the compounds having a double or triple bond. The addition of hydrogen atoms results in the conversion of alkene and alkyne molecules into alkanes. Catalytic hydrogenation occurs in the presence of metal atoms such as nickel and palladium.

(b)

Interpretation Introduction

To draw: The structure of unknown compound $\text{X}$.

Interpretation: The structure of unknown compound $\text{X}$ is to be drawn.

Concept introduction: Catalytic hydrogenation is the process used to introduce hydrogen atoms in the compounds having a double or triple bond. The addition of hydrogen atoms results in the conversion of alkene and alkyne molecules into alkanes. Catalytic hydrogenation occurs in the presence of metal atoms such as nickel and palladium.

(c)

Interpretation Introduction

To draw: The structure of unknown compound $\text{Y}$.

Interpretation: The structure of unknown compound $\text{Y}$ is to be drawn.

Concept introduction: Catalytic hydrogenation is the process used to introduce hydrogen atoms in the compounds having a double or triple bond. The addition of hydrogen atoms results in the conversion of alkene and alkyne molecules into alkanes. Catalytic hydrogenation occurs in the presence of metal atoms such as nickel and palladium.

(d)

Interpretation Introduction

To draw: The structure of unknown compound $\text{Z}$.

Interpretation: The structure of unknown compound $\text{Z}$ is to be drawn.

Concept introduction: Catalytic hydrogenation is the process used to introduce hydrogen atoms in the compounds having the double or triple bond. The addition of hydrogen atoms results in the conversion of alkene and alkyne molecules into alkanes. Catalytic hydrogenation occurs in the presence of metal atoms such as nickel and palladium.