BICYCLIC TRIAZOLES FROM A DIAZO TRANSFER-REACTION BETWEEN CYCLIC ENAMINONES AND 5,7-DINITRO-3-DIAZO-1,3-DIHYDRO-2H-INDOL-2-ONE

The synthetic usefulnes of a new method of 1,2,3,-triazole synthesis has been demonstrated. By employing cyclic enamino esters 3 and enamino ketones 4 in reactions with 5,7-dinitro-3-diazo-1,2,-dihydro-2H-indol-2-one (1), bicyclic triazoles 5 and 6 have been prepared in good to excellent yields.50236723672