35 research outputs found

    4-Amino-2,8-dimethyl-6H-pyrimido[1,2-a][1,3,5]triazin-6-one1

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    In the title compound, C8H9N5O, the mean planes through the pyrimidine and triazine rings form a dihedral angle of 2.83 (16)°. The amino group adopts a trigonal-planar configuration and forms an intra­molecular resonance-assisted N—H⋯O=C hydrogen bond with the carbonyl group. In the crystal, mol­ecules are linked via inter­molecular N—H⋯N hydrogen bonds into chains of C 2 2(6)[R 2 2(6)] motif. The molecules form two types of sheet parallel to (201) and (01), respectively

    Furanverbindungen, 7. Mitt.: Synthese linear anellierter Furoxanthone

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