Titel
Dipyrazolo[1,5-a:4',3'-c]pyridines – a new heterocyclic system accessed via multicomponent reaction
Autor*in
Eglė Arbačiauskienė
Institute of Synthetic Chemistry, Kaunas University of Technology
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Abstract
The synthesis of dipyrazolo[1,5-a:4',3'-c]pyridines is described. Easily obtainable 5-alkynylpyrazole-4-carbaldehydes, p-toluenesulfonyl hydrazide, and an aldehyde or ketone containing an α-hydrogen atom were reacted in a silver triflate catalyzed multicomponent reaction affording new tricyclic compounds with a dipyrazolo[1,5-a:4',3'-c]pyridine core. Detailed NMR spectroscopic investigations (1H, 13C and 15N) were undertaken with all obtained compounds.
Stichwort
cyclizationnitrogen heterocyclesNMR spectroscopymulticomponent reactionpyrazole
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
phaidra.univie.ac.at/o:563831
Erschienen in
Titel
Beilstein Journal of Organic Chemistry
Band
8
Seitenanfang
2223
Seitenende
2229
Publication
Beilstein Institut
Erscheinungsdatum
2012
Zugänglichkeit
Rechte
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