Chapter 21, Problem 21.20P

Interpretation Introduction

Interpretation:

The structure of C is to be predicted.

Concept introduction:

In Wittig reaction, aldehyde can be directly converted to alkene using triphenyl phosphonium ylide. The geometry of the alkene formed, depends on the stability of the ylides.

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.