URI | http://purl.tuc.gr/dl/dias/F4F2E829-6960-446F-AF74-1FF401B7FE0E | - |
Αναγνωριστικό | http://www.sciencedirect.com/science/article/pii/S0040402014003512 | - |
Αναγνωριστικό | https://doi.org/10.1016/j.tet.2014.03.031 | - |
Γλώσσα | en | - |
Μέγεθος | 6 pages | en |
Τίτλος | Diastereoselective one-pot synthesis of novel ABCD-fused chromeno[2,3-d]pyrazolo[3,4-b]pyridines | en |
Δημιουργός | Eleni Dimitriadou | en |
Δημιουργός | Julia Stephanidou-Stephanatou | en |
Δημιουργός | Constantinos A. Tsoleridis | en |
Δημιουργός | Dimitra J. Hadjipavlou-Litina | en |
Δημιουργός | Christos Kontogiorgis | en |
Δημιουργός | Kostakis Georgios | en |
Δημιουργός | Κωστακης Γεωργιος | el |
Εκδότης | Elsevier | en |
Περίληψη | A new aspect concerning chromone chemistry leading to the one-pot synthesis of functionalized novel ABCD-fused chromenopyrazolopyridines has been described. The synthesis involves a multicomponent reaction of chromone-3-benzoylhydrazones with isocyanides and acetylenedicarboxylates, whereupon novel complex tetracyclic benzopyrone derivatives containing three stereogenic centres were formed. The structure elucidation of the products was accomplished by 1D and 2D NMR experiments and confirmed by X-ray crystallographic analysis. Full assignment of all 1H and 13C NMR chemical shifts has been unambiguously achieved. The reaction mechanism is also discussed. In addition, eight chromenopyrazolopyridine derivatives were tested for possible biological activity (antioxidant and lipid peroxidation inhibition). | en |
Τύπος | Peer-Reviewed Journal Publication | en |
Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2015-12-04 | - |
Ημερομηνία Δημοσίευσης | 2014 | - |
Θεματική Κατηγορία | Acetylenedicarboxylates | en |
Θεματική Κατηγορία | Chromenes | en |
Θεματική Κατηγορία | Chromenopyrazolopyridines | en |
Θεματική Κατηγορία | Isocyanides | en |
Θεματική Κατηγορία | Multicomponent reactions | en |
Βιβλιογραφική Αναφορά | E. Dimitriadou, J. Stephanidou-Stephanatou, C. A. Tsoleridis, D. J. Hadjipavlou-Litina, C. Kontogiorgis, and G. E. Kostakis, "Diastereoselective one-pot synthesis of novel ABCD-fused chromeno[2,3-d]pyrazolo[3,4-b]pyridines", Tetrahedron, vol. 70, no. 18, pp. 2938-2943, May 2014. doi:10.1016/j.tet.2014.03.031 | en |