Chapter 19, Problem 19.22P

Interpretation Introduction

Interpretation:

The three starting materials which might be used to produce the given compound by selective catalytic hydrogenation are to be predicted.

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.