5,5-Dimethyl-2-phenyl-4,5-dihydro-1,2,4-triazolo[1,5-a][1,3,5] triazin-7-amine

Abstract

The title compound, C12H14N6, was synthesized via cyclo-condensation of 5-amino-1-guanyl-3-phenyl-1,2,4-triazole with acetone. Only one tautomeric form with an H atom at the triazine N atom was observed in the crystal structure. The compound crystallizes with two almost identical mol-ecules in the asymmetric unit. In both mol-ecules, the triazine ring adopts a conformation inter-mediate between a twist-boat and a half-boat. The crystal packing is stabilized by inter-molecular N - H⋯N hydrogen bonds. © International Union of Crystallography 2007.