A facile, aqueous phase green synthetic protocol for the synthesis of 5,9b-dihydro-1H-[1,2,4]triazino[5,6-b]indole-3-ols/5,9b-dihydro-1H-[1,2,4]triazino[5,6-b]indole-3-thiols

5,9b-Dihydro-1H-[1,2,4]triazino[5,6-b]indole-3-ols/5,9b-dihydro-1H -[1, 2,4]triazino[5,6-b]indole-3-thiols were synthesized for the first time in water under neutral conditions by using isatin, semicarbazide/thiosemicarbazide, mediated by beta -cyclodextrin in excellent yields. beta -Cyclodextrin ha...

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Veröffentlicht in:	Tetrahedron letters 2011-09, Vol.52 (37), p.4734-4737
Hauptverfasser:	RAMESH, K, NARAYANA MURTHY, S, KARNAKAR, K, NAGESWAR, Y. V. D
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbohydrates with 4, 5, 6, ... C atoms, dissacharides and oligosaccharides Carbohydrates. Nucleosides and nucleotides Catalytic activity Chemistry Economic conditions Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with only one n hetero atom and condensed derivatives Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings Organic chemistry Preparations and properties Synthesis (chemistry) Tetrahedrons Thiosemicarbazides
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Beschreibung
Zusammenfassung:	5,9b-Dihydro-1H-[1,2,4]triazino[5,6-b]indole-3-ols/5,9b-dihydro-1H -[1, 2,4]triazino[5,6-b]indole-3-thiols were synthesized for the first time in water under neutral conditions by using isatin, semicarbazide/thiosemicarbazide, mediated by beta -cyclodextrin in excellent yields. beta -Cyclodextrin has been recovered and reused without any loss of catalytic activity.
ISSN:	0040-4039 1873-3581
DOI:	10.1016/j.tetlet.2011.06.098