Synthesis of 4‐(1‐phenyl‐1H‐pyrazol‐3‐yl)‐[1,2,4]triazolo[4,3‐a]quinoxalines and their 4‐halogenopyrazolyl analogs |
| |
| Authors: | Kamal F M Atta El Sayed H El Ashry |
| |
| Institution: | Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21321, Egypt |
| |
| Abstract: | Synthesis of {3‐1‐(ethoxycarbonyl)‐1,2,4]triazolo4,3‐a]quinoxalin‐4‐yl]‐1‐phenyl‐1H‐pyrazol‐5‐yl}methyl ethyl oxalate ( 2 ), ethyl 4‐5‐(acetoxymethyl)‐1‐phenyl‐1H‐pyrazol‐3‐yl]‐1,2,4]triazolo4,3‐a]quioxaline‐1‐carboxylate ( 4 ), 4‐halo‐1‐phenyl‐3‐(1‐phenyl‐1,2,4]triazolo4,3‐a]quioxalin‐4‐yl)‐1H‐pyrazol‐5‐yl]methyl acetate ( 11 ), {4‐halo‐3‐1‐methyl‐1,2,4]triazolo4,3‐a]quinoxalin‐4‐yl]‐1‐phenyl‐1H‐pyraz‐ol‐5‐yl}methyl acetate ( 13 ), and 3‐(1,2,4]triazolo‐4,3‐a]quinoxalin‐4‐yl)‐4‐halo‐1‐phenyl‐1H‐pyrazol‐5‐yl] methyl formate ( 15 ) was accomplished. The structural investigation of the new compounds is based on chemical and spectroscopic evidences. J. Heterocyclic Chem., (2011) |
| |
| Keywords: | |
|
|
