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Ene Synthesis of Bicyclic Arylmethylenedihydropyrazoles Using 4-Phenyl-4,5-dihydro-3H-1,2,4-triazole-3,5-dione

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Abstract

8-Acetyl-7-aryl-2-arylmethylene-8,9-diaza- and 4,8,9-triazabicyclo[4.3.0]non-9-enes react with4-phenyl-4,5-dihydro-3H-1,2,4-triazole-3,5-dione, following the ene addition pattern. Under similar conditons 7-aryl-2-arylmethylene-8-methyl-8,9-diazabicyclo[4.3.0]non-9-enes give rise to both mono- and polyadditionproducts. The product structures were studied by 1H and 13C NMR, IR, and UV spectroscopy and singlecrystal X-ray diffraction.

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Authors and Affiliations

  1. Institute of Chemistry, National Autonomous University of Mexico, Mexico City, Mexico

    M. G. Martinez, T. Klimova-Berestneva, K. Damian-Zea, N. N. Meleshonkova & E. I. Klimova

  2. National Autonomous, University of Mexico, Mexico. City, Mexico

    M. G. Martinez, T. Klimova-Berestneva, K. Damian-Zea, N. N. Meleshonkova & E. I. Klimova

  3. Moscow State University, Moscow, Russia

    M. G. Martinez, T. Klimova-Berestneva, K. Damian-Zea, N. N. Meleshonkova & E. I. Klimova

Authors
  1. M. G. Martinez
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  2. T. Klimova-Berestneva
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  3. K. Damian-Zea
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  4. N. N. Meleshonkova
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  5. E. I. Klimova
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Martinez, M.G., Klimova-Berestneva, T., Damian-Zea, K. et al. Ene Synthesis of Bicyclic Arylmethylenedihydropyrazoles Using 4-Phenyl-4,5-dihydro-3H-1,2,4-triazole-3,5-dione. Russian Journal of General Chemistry 72, 1132–1140 (2002). https://doi.org/10.1023/A:1020771320485

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  • DOI: https://doi.org/10.1023/A:1020771320485

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