Convenient synthesis of benzo[b]pyrazolo[5,1-f][1,6]naphthyridines by silver triflate catalyzed three-component reaction of 2-alkynyl-3-formylquinolines, tosylhydrazine and carbonyl compounds
摘要:
Benzo[b]pyrazolo[5,1-f][1,6]naphthyridines were prepared by silver triflate catalyzed one-pot cyclization of tosylhydrazine, carbonyl compounds and 2-alkynyl-3-formylquinolines, which are available by Sonogashira reaction of 2-chloro-3-formylquinoline. (C) 2013 Elsevier Ltd. All rights reserved.
Convenient synthesis of benzo[b]pyrazolo[5,1-f][1,6]naphthyridines by silver triflate catalyzed three-component reaction of 2-alkynyl-3-formylquinolines, tosylhydrazine and carbonyl compounds
作者:Muhammad Zahid、Viktor O. Iaroshenko、Ashot S. Saghyan、Christine Fischer、Peter Langer
DOI:10.1016/j.tet.2013.02.060
日期:2013.4
Benzo[b]pyrazolo[5,1-f][1,6]naphthyridines were prepared by silver triflate catalyzed one-pot cyclization of tosylhydrazine, carbonyl compounds and 2-alkynyl-3-formylquinolines, which are available by Sonogashira reaction of 2-chloro-3-formylquinoline. (C) 2013 Elsevier Ltd. All rights reserved.