PYRIMIDINETHIONES AS BUILDING BLOCKS IN HETEROCYCLIC SYNTHESIS: SYNTHESIS OF PYRANO[2,3-D]PYRIMIDINE, CHROMENO[2,3-D]PYRIMIDINE, PYRIDO[3',2':5,6]PYRANO[2,3-B]PYRIDINE AND PYRIMIDO[5',4':5,6]PYRANO[2,3-D]PYRIMIDINE | ||||
Sinai Journal of Applied Sciences | ||||
Article 2, Volume 3, Issue 2, August 2014, Page 51-62 PDF (226.21 K) | ||||
DOI: 10.21608/sinjas.2014.78457 | ||||
View on SCiNiTO | ||||
Authors | ||||
Mohamed A. Elian* ; Ibrahim S. AbdelHafiz; Mohamed A.M. AbdElReheim | ||||
Dept. Chem., Fac. Educ., Suez Canal Univ., Arish, Egypt. | ||||
Abstract | ||||
A series of new thioxopyrimidine, 4H-pyrans, pyranopyridine and pyranopyrimidine derivatives with expected biological activity have been prepared through the reaction of 6-phenyl-2-thioxo-2,3-dihydropyrimidin-4(5H)-one 4 and 7-Amino-5-(4-chlorophenyl)-4-phenyl-2-thioxo-2,5-dihydro-1H-pyrano[2,3-d]pyrimidine-6-carbonitrile 11b with some electrophilic reagents and nucleophilic reagents. The newly synthesized compounds were characterized by IR, 1H-NMR and mass spectral studies. | ||||
Keywords | ||||
Thioxopyrimidine; 4H-pyrans; pyranopyridine and pyranopyrimidine | ||||
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