The photochemically generated nitrile imines react with aryl compounds. The regiospecificity in the formation of 1,2,3-triazoles is likely controlled by the steric and electronic factors influencing the addition of the nitrile imine to the aryl ring.
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Benzenamine, 4-(4,5-diphenyl-2H-1,2,3-triazol-2-yl)-
