A base‐promoted cyclodehydration of 4‐nitroso‐5‐alkylsulfonylamidopyrazoles 3 afforded 6H‐pyrazolo‐[3, 4‐c][1, 2, 5]thiadiazine 2, 2‐dioxide (4). The structure of 4 was confirmed through X‐ray analysis. Copyright © 1989 Journal of Heterocyclic Chemistry
A NEW FUSED HETEROCYCLIC SYSTEM - 6H-PYRAZOLO[3,4-C][1,2,5]THIADIAZINE 2,2-DIOXIDE
VICENTINI, Chiara Beatrice;VERONESE, Augusto;GUARNERI, Mario;GIORI, Paolo;FERRETTI, Valeria
1989
Abstract
A base‐promoted cyclodehydration of 4‐nitroso‐5‐alkylsulfonylamidopyrazoles 3 afforded 6H‐pyrazolo‐[3, 4‐c][1, 2, 5]thiadiazine 2, 2‐dioxide (4). The structure of 4 was confirmed through X‐ray analysis. Copyright © 1989 Journal of Heterocyclic ChemistryFile in questo prodotto:
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