Chapter 12, Problem 31P

Interpretation Introduction

(a)

Interpretation: The organic product formed when the given alkene is treated with ${\text{H}}_{\text{2}},\text{Pd-C}$ is to be drawn. The three dimensional structure of all the stereoisomers is to be indicated.

Concept introduction: The addition of ${\text{H}}_{\text{2}}$ in presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Alkene is reduced to alkane. In this reaction weak pi bond of alkene and sigma bond between ${\text{H}}_{\text{2}}$ is broken and two $\text{C}-\text{H}$ bonds are formed.

Interpretation Introduction

(b)

Interpretation: The organic product formed when the given alkene is treated with ${\text{H}}_{\text{2}},\text{Pd-C}$ is to be drawn. The three dimensional structure of all the stereoisomers is to be indicated.

Concept introduction: The addition of ${\text{H}}_{\text{2}}$ in presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Alkene is reduced to alkane. In this reaction weak pi bond of alkene and sigma bond between ${\text{H}}_{\text{2}}$ is broken and two $\text{C}-\text{H}$ bonds are formed.

Interpretation Introduction

(c)

Interpretation: The organic product formed when the given alkene is treated with ${\text{H}}_{\text{2}},\text{Pd-C}$ is to be drawn. And the three dimensional structure of all the stereoisomers is to be indicated.

Concept introduction: The addition of ${\text{H}}_{\text{2}}$ in presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Alkene is reduced to alkane. In this reaction weak pi bond of alkene and sigma bond between ${\text{H}}_{\text{2}}$ is broken and two $\text{C}-\text{H}$ bonds are formed.