Chapter 25, Problem 19P

Interpretation Introduction

Interpretation: The unusual feature that characterizes the joining of isoprene units in cubene is to be determined.

Concept introduction:

The compounds that possess two units of terpene in their structures having the molecular formula ${\text{C}}_{\text{20}}{\text{H}}_{\text{32}}$ are known as diterpenes.

There are four units of isoprene $\left(\text{2-methyl-1,3-butadiene}\right)$ which are arranged in different forms in their structures. Diterpenes are synthesized biologically by animals, fungi and plants.