| Title |
Dipyrazolo[1,5-a:4',3'-c]pyridines – a new heterocyclic system accessed via multicomponent reaction / |
| Authors |
Holzer, Wolfgang ; Vilkauskaitė, Gytė ; Arbačiauskienė, Eglė ; Šačkus, Algirdas |
| DOI |
10.3762/bjoc.8.251 |
| Full Text |
|
| Is Part of |
Beilstein Journal of Organic Chemistry.. Frankfurt am Main : Beilstein-Institut. 2012, vol. 8. ISSN 1860-5397 |
| Keywords [eng] |
cyclization ; nitrogen heterocycles ; NMR spectroscopy ; multicomponent reaction ; pyrazole |
| Abstract [eng] |
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. |
| Published |
Frankfurt am Main : Beilstein-Institut |
| Type |
Journal article |
| Language |
English |
| Publication date |
2012 |
| CC license |
|
