Chapter 8.17B, Problem 8.43P

Interpretation Introduction

Interpretation: The mechanism for the triolefin process using a metal alkylidene as the catalyst is to be proposed.

Concept introduction: Alkene as two alkylidene groups bonded together same as the Schrock and Grubbs catalysts are like a metal atom that are bonded to one alkylidene group. Chauvin proposed a mechanism in which metal-alkylidene catalyst forms an intermediate four-membered ring with an alkene then the ring breaks apart to give starting alkene and catalyst or it results to give a new alkene that has traded one alkylidene group with the catalyst.

To determine: The mechanism for the triolefin process using a metal alkylidene as the catalyst.