Synthesis of Some Novel Thieno[2,3-c] pyridazines, Triazolo[1’’5’’:1’,6’]pyrimido[4’,5’: 4,5] thieno [2,3-c]pyridazines
Vol. 66 No. 539 (2009), Articles
Vol. 66 No. 539 (2009)

Synthesis of Some Novel Thieno[2,3-c] pyridazines, Triazolo[1’’5’’:1’,6’]pyrimido[4’,5’: 4,5] thieno [2,3-c]pyridazines

Articles
A. Kamal El-Dean
Chemistry Department Faculty of Science Assiut University Assiut 71516
A. Al-Kamali
Chemistry Department Faculty of Science Taiz University
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Kamal El-Dean, A.; and Al-Kamali, A. “Synthesis of Some Novel Thieno[2,3-c] pyridazines, Triazolo[1’’5’’:1’,6’]pyrimido[4’,5’: 4,5] thieno [2,3-c]pyridazines”. Afinidad. Journal of Chemical Engineering Theoretical and Applied Chemistry, vol.VOL 66, no. 539, https://raco.cat/index.php/afinidad/article/view/276660.


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Abstract

3,4-Dimethyl-5,6-disubstited-thieno[2,3-c]pyridazines
(5a-d, 6, and 7) have been synthesized. 5-Amino-3,4-
dimethylthieno[2,3-c]pyridazine-6-carbonitrile (5b) was
used as a key intermediate in the synthesis of novel pyrimido[
4’,5’:4,5]thieno[2,3-c]pyridazine derivatives (8-12)
and 1,2,4-triazolo[1»,5»:1’,6’]pyrimido[4’,5’:4,5]thieno[2,3-
c]pyridazine (14, 15).

Keywords

  • Thienopyridazine
  • pyrimidothienopyridazines
  • triazolopyrimidothienopyridazines.
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