Dimroth rearrangement in the row of new pyrano[3,4-c][1,2,4]triazolo[4,3-a][1,5-a]pyridines and synthesis of new heterocyclic systems: Pyranopyrazolo[4,3-e][1,2,4]triazolopyridines |
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| Authors: | Ervand G Paronikyan Shushanik Sh Dashyan Suren S Mamyan Armen G Ayvazyan |
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| Institution: | Scientific Technological Center of Organic and Pharmaceutical Chemistry, National Academy of Science of Republic of Armenia, Yerevan, Armenia |
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| Abstract: | New and effective methods for the synthesis of derivatives of pyrano3,4-c]1,2,4]triazolo4,3-a]1,5-a]pyridines were developed. Synthesized new tetracyclic heterocyclic systems containing pyrano3,4-c]pyridine ring unknown in the literature were obtained for the first time. The rearrangement of Dimroth in the triazolo4,3-a]pyridine systems for the first time was studied. The possibility of rearrangement of Dimroth in the new heterocyclic system has been investigated. |
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