Synthesis Of 5, 7-Diaryl-1,5-Dihydro (Or 1, 2, 3, 5-Tetrahydro)- Pyrano[2, 3-D] Pyrimidin-2, 4-Diones (Or 2-Thioxo-4-Ones).

  • Mohammad Shahid Ullah Department of Chemistry, University of Dhaka, Dhaka-1000,
  • M Giasuddin Ahmed Department of Chemistry, University of Dhaka, Dhaka-1000,
  • UKR Romman Department of Chemistry, University of Dhaka, Dhaka-1000,
  • Kawsari Akhter Department of Chemistry, University of Dhaka, Dhaka-1000,
  • S Mosaddeq Ahmed Department of Natural Science, American International University-Bangladesh (AIUB), Banani, Dhaka-1213,
  • Md. Ershad Halim Department of Chemistry, University of Dhaka, Dhaka-1000,

Abstract

Some 5, 7-diaryl-1,5-dihydro (or 1, 2, 3, 5-tetrahydro)- pyrano[2, 3-d] pyrimidin-2, 4- diones (or 2-thioxo-4-ones) (3a-g) has been synthesized in one-step by the cyclocondensation of barbituric acid or thiobarbituric acid (1) with arylideneacetophenones (2a-d), in glacial acetic acid in the presence of phosphorous pentoxide. The structures of the compounds 3a-g were determined by their UV, IR, 1H NMR, 13C NMR, mass spectral data and elemental analyses.

Journal of Bangladesh Chemical Society, Vol. 25(2), 124-131, 2012

DOI: http://dx.doi.org/10.3329/jbcs.v25i2.15064

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Abstract
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Published
2013-05-23
How to Cite
Ullah, M., Ahmed, M., Romman, U., Akhter, K., Ahmed, S., & Halim, M. (2013). Synthesis Of 5, 7-Diaryl-1,5-Dihydro (Or 1, 2, 3, 5-Tetrahydro)- Pyrano[2, 3-D] Pyrimidin-2, 4-Diones (Or 2-Thioxo-4-Ones). Journal of the Bangladesh Chemical Society, 25(2), 124-131. https://doi.org/10.3329/jbcs.v25i2.15064
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