Chapter 24, Problem 24.32P

Interpretation Introduction

Interpretation:

The structure of $\text{R}$ has to be given and the synthesis of Exaltolide has to be given from the starting material.

Concept Introduction:

Alkene metathesis:

An organometallic catalyzed reaction in which two alkenes exchange carbon atoms of their double bonds are said to be Alkene metathesis reaction.  Two alkenes are in same molecule and the product is a cycloalkene and ring closing occurs.  The catalyst used is $\text{Ru}$‑nucleophilic carbene complex.

Example: