One step cyclocondensation of (thio)barbituric acid with chalcones in glacial acetic acid and phosphorous pentoxide: Part-I

Authors

  • K Akhter Department of Chemistry, University of Dhaka, Dhaka-1000
  • SM Ahmed Department of Chemistry, American International University-Bangladesh (AIUB), 83/B, Road-4, Kemal Ataturk Avenue, Banani, Dhaka-1213
  • Md E Halim Department of Chemistry, University of Dhaka, Dhaka-1000
  • MA Kader Department of Chemistry, University of Dhaka, Dhaka-1000
  • K Jahan Department of Chemistry, University of Dhaka, Dhaka-1000
  • UKR Romman Department of Chemistry, University of Dhaka, Dhaka-1000
  • MG Ahmed Department of Chemistry, University of Dhaka, Dhaka-1000

DOI:

https://doi.org/10.3329/bjsir.v51i2.28110

Keywords:

Arylideneacetophenone, Barbituric acid, Thiobarbituric acid, Cyclocondensation

Abstract

Some new 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-h) have been synthesized in one-step by 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-h have been determined by UV, IR, 1H NMR, 13C NMR, mass spectral data and elemental analyses. The compounds 3a-h do not seem to be available in the literature

Bangladesh J. Sci. Ind. Res. 51(2), 129-138, 2016

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Published

2016-06-12

How to Cite

Akhter, K., Ahmed, S., Halim, M. E., Kader, M., Jahan, K., Romman, U., & Ahmed, M. (2016). One step cyclocondensation of (thio)barbituric acid with chalcones in glacial acetic acid and phosphorous pentoxide: Part-I. Bangladesh Journal of Scientific and Industrial Research, 51(2), 129–138. https://doi.org/10.3329/bjsir.v51i2.28110

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