Synthesis, Reactions and Characterization of 4,4’-Benzene-1,4-diylbis (5-Acetyl-6-methyl-2-thioxo - 1,2-dihydropyridine-3-carbonitrile) | ||||
| Egyptian Journal of Chemistry | ||||
| Article 2, Volume 56, Issue 2, April 2013, Page 127-140 PDF (430.14 K) | ||||
| DOI: 10.21608/ejchem.2013.1103 | ||||
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| Abstract | ||||
| BENZENE-1,4-dicarbaldehyde (1) reacted with 2-cyanoethane- …. thioamide (2) to give 3,3'-benzene-1,4-diylbis(2-cyanoprop-2-enethioamide) (3) which in turn, reacted with pentane-2,4-dione (4) to afford the corresponding 4,4’-benzene-1,4-diylbis(5-acetyl-6-methyl-2-thioxo-1,2-dihydropyridine-3-carbonitrile)(5). The synthetic potentiality of compound 5 was investigated in the present study via its reaction with several reagents to afford newly synthesized 4,4’-(1,4-phenylene)-bis (5-acetyl-3-amino-6-methylthieno [2,3-b] pyridines (8a-h). Structures of all newly synthesized heterocyclic compounds in the present study were confirmed by considering the data of IR, 1H NMR, mass spectra as well as that of elemental analyses | ||||
| Keywords | ||||
| Bis(2-cyanoprop-2-enethioamide); Pentane-2; 4-dione; Bis (5-acetyl-6-methyl -2 -thioxo-1; 2- dihydropyridine-3 carbonitrile); Bis(5-acetyl-6-methyl-2-alkylthiopyridine-3-carbo-nitrile); and Bis (5-acetyl-3-amino-6-methylthieno [2; 3-b] pyridine | ||||
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