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Synthesis, characterization, and crystal structure of 1,3,7,9-tetramethylpyrido-[2,3-d∶6,5-d′]-dipyrimidine-2,4,6,8-tetrone

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Abstract

A new and easy method for the preparation of 1,3,7,9-tetramethylpyrido-[2,3-d∶6,5-d′]-dipyrimidine-2,4,6,8-tetrone is described. The structure of this compound has been solved by means of X-ray diffraction methods. The chemical characterization by spectral (mass, ultraviolet, infrared, and proton nuclear magnetic resonance) and thermal (thermogravimetry and differential scanning calorimetry) method is also reported. The compound is monoclinic, space groupP21/c,a=12.720(5),b=13.688(7),c=8.079(2) Å, β=107.06(4)°,Z=4. The structure consists of discrete tricyclic molecules, stacking playing an important role in crystal packing.

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Authors and Affiliations

  1. Departamento de Química Inorgánica, Universidad de Granada, 18071, Granada, Spain

    C. Enrique-Mirón, M. Quirós-Olozábal, M. A. Romero-Molina, J. M. Salas-Peregrín & M. P. Sánchez-Sánchez

  2. Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, 23071, JAÉN, Spain

    F. Hueso-Ureña & M. N. Moreno-Carretero

  3. Departamento de Mineralogía y Petrología, Universidad de Granada, 18071, Granada, Spain

    J. D. Martín-Ramos

Authors
  1. C. Enrique-Mirón
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  2. M. Quirós-Olozábal
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  3. M. A. Romero-Molina
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  4. J. M. Salas-Peregrín
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  5. M. P. Sánchez-Sánchez
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  6. F. Hueso-Ureña
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  7. M. N. Moreno-Carretero
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  8. J. D. Martín-Ramos
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Enrique-Mirón, C., Quirós-Olozábal, M., Romero-Molina, M.A. et al. Synthesis, characterization, and crystal structure of 1,3,7,9-tetramethylpyrido-[2,3-d∶6,5-d′]-dipyrimidine-2,4,6,8-tetrone. J Chem Crystallogr 24, 465–468 (1994). https://doi.org/10.1007/BF01666096

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  • DOI: https://doi.org/10.1007/BF01666096

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