The photochemicalreaction of an aromatic aldehyde with indole or 2-methylindole gave 3,3′-diindolylmethanes in ca. 50% yield. A mechanism involving a electron transfer process is proposed.
accomplish C−Cπ bond construction reaction between π-excessive azaheteroaromatic and different carbonyl substrates supported on a bentonitic clay catalyst in solventless condition via a three-component condensation reaction. Preliminary studies show that the implementation of a domestic Flavor-Wave® oven fitted with a halogen heater lamp as a chemical reactor was as effective as the use of near IR light