1: With RuCl2(tricyclohexylphosphine)2(benzylidene) in benzene T=40°C; 2 h; Inert atmosphere; 2: With tert.-butylhydroperoxide in decane; benzene 3.25 h; Inert atmosphere; regioselective reaction;

PQS-attached Grubbs-Hoveyda-1 metathesis catalyst in water T=20°C; 3 h; Micellar solution;