Mechanochemical Ruthenium-Catalyzed Olefin Metathesis

We describe the development
of a mechanochemical approach for Ru-catalyzed
olefin metathesis, including cross-metathesis and ring-closing metathesis.
The method uses commercially available catalysts to achieve high-yielding,
rapid, room-temperature metathesis of solid or liquid olefins on a
multigram scale using either no or only a catalytic amount of a liquid.