Ring closing metathesis industrial applications

In general, there are three modes of olefin metathesis ring closing metathesis (RCM),M ring opening metathesis polymerization (ROMP),5-6 and cross metathesis (CM).7-9 Although all three have industrial applications, the main use of olefin metathesis for fine chemicals production lies in the modes of CM and RCM (Scheme 28.1). 

We have separated the industrial applications into two groups, depending on the resulting product, an acyclic olefin or a polymer. Up to now, the third class of applications, the ring closing metathesis reaction, has not been applied industrially, despite some interesting results were obtained on the laboratory scale. 

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