Katsuya Konno

One-step synthesis of N,N′-dialkyl-p-phenylenediamines

Condensation of 1,4-cyclohexanedione with primary alkylamines in the presence of air afforded N,N′-dialkyl-p-phenylenediamines. Reactions occurred at room temperature and were complete within a few hours, in high atom economy and with water as the major by-product.

Effect of Coexistent Hydrogen on the Selective Production of Ethane by Dehydrogenative Methane Coupling through Dielectric-Barrier Discharge under Ordinary Pressure at an Ambient Temperature

The effect of coexistence of hydrogen on the product selectivity to ethane from methane by dielectric-barrier discharge (DBD) reactor was examined experimentally under ordinary pressure without use of catalyst and external heating. By the dilution of methane with hydrogen, both the increase of methane conversion and the decrease of alkene production were observed, improving the selectivities to ethane by ca. 70%.