Coordinating solvents, such as tetrahydrofuran and dichloromethane, inhibited the reaction by binding to the Ru center, but benzene and chlorobenzene were effective for the oxidation with N2O. There was a clear dependence on the pressure of the nitrous oxide, as the yield of the epoxidation reaction increased significantly when the pressure was raised from 1 to 12 atmospheres, although further inc