Novel One-pot Synthesis of Thiazolo[3,2-a] Pyrimidin-5-one as a Key Compound for Poly Nuclear Heterocycles | ||||
| Egyptian Journal of Chemistry | ||||
| Article 3, Volume 59, Issue 3, June 2016, Page 305-319 PDF (777.19 K) | ||||
| DOI: 10.21608/ejchem.2016.1052 | ||||
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| Abstract | ||||
| 3 -AMINO-2- hydroxy-7-methyl- thiazolo[3,2-a]pyrimidin-5-one(5) ….was synthesized by one-pot reaction from 2-bromo cyanoacetamide, ethyl acetoacetate and thiourea. The new 3-amino-2-hydrazino derivatives (15,18), 2-pyrazol- thiazolo [3,2-a] pyrimidin -5-ones )14,17,20) and 2-(4-arylidene) -pyrazol-thiazolo [3,2-a] pyrimidin-5-ones (22a-d) were synthesized through facile condensing procedures starting from 3-amino-2-hydrazino-7-methyl-thiazolo[3,2-a]pyrimidin-5-one (12). The newly synthesized products were characterized by their IR, ESI-MS, NMR and micro analytical data. | ||||
| Keywords | ||||
| Thiazolo [3; 2-a] pyrimidin-5-one; One pot synthesis; Condensation; Intramolecular Cyclization and Tautomerism | ||||
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