Chapter 19, Problem 19.10YT

Interpretation Introduction

Interpretation:

How H₂C=CH₂ is produced is to be determined using mechanism.

Concept introduction:

Alkene metathesis reactions generally take place under equilibrium conditions. Therefore, with the product alkenes having similar thermodynamic stabilities to the reactant alkene, the yield is relatively low. As is the case with any chemical equilibrium, Le Châtelier’s principle can be exploited by removing products as they form. If the reactants are terminal alkenes, then one of the products is ethene, which is a gas that escapes the system as it forms.