A Thermally Switchable Latent Ruthenium Olefin Metathesis Catalyst

The synthesis and characterization of a cis-dichloro sulfur chelated olefin metathesis catalyst is presented. The catalyst was extremely stable at room temperature in solution under ambient conditions and was shown to exhibit a thermo-switchable behavior for ring-closing olefin metathesis of diethyl diallylmalonate, being active at 80 °C and inactive at room temperature.