Catalytic redistribution of carbon–carbon double-bond partners. Intramolecular and intermolecular reactions can compete, producing rings, chains and small alkene coproducts.
A four-membered ring containing one metal and three carbon atoms. Its formation and alternate fragmentation exchange alkylidene groups during olefin metathesis.
Step-growth polymerization in which terminal diene groups undergo intermolecular olefin metathesis. Removing a volatile alkene coproduct can drive conversion.
Intramolecular olefin metathesis connecting two alkene sites into a ring. Terminal-alkene substrates can release ethene; concentration and preorganization influence competition with chain growth.
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