Alkenes and some alkynes also undergo polymerization, alkene metathesis, and alkyne metathesis. Grubbs' catalyst is used for alkene metathesis. Solutions containing ruthenium trichloride are highly active for olefin metathesis. Grubbs catalysts are of interest for olefin metathesis. Three key rearrangement reactions are 1,2-rearrangements, pericyclic reactions and olefin metathesis. Benzoquinone is also used to suppress double-bond migration during olefin metathesis reactions. Vinyl-substituted silsesquioxanes can be linked by the alkene metathesis. The mechanism for ROMP follows similar pathways as olefin metathesis. In 1971, Yves Chauvin offered an explanation of the reaction mechanism of olefin metathesis reactions. The mechanism of ROMP is similar to any olefin metathesis reaction. Neither sigma-bond metathesis or olefin metathesis change the oxidation state of the metal. Metal complexes are alkylated via salt metathesis reactions. The researchers proposed a name for this reaction type&colon; olefin metathesis. The technology is founded on an olefin metathesis reaction discovered at Phillips Petroleum Company.