作者:Antonio Da Settimo、Giuliana Biagi、Giampaolo Primofiore、Pier Luigi Ferrarini、Oreste Livi、Anna Maria Marini
DOI:10.1002/jhet.5570170616
日期:1980.9
The preparation of some 3,7-disubstituted-5,6-dihydroquino[3,2-c][1,8]naphthyridines (6) by the condensation of 7-substituted-2,3-dihydro-1,8-naphthyridin-4-(1H)ones (5) with o-aminoacetophenone or o-aminobenzophenone is described. All the 5,6-dihydroderivatives 6 were transformed into the fully aromatic compounds 7 by heating with nitrobenzene. Only a few quino[3,2-c][1,8]naphthyridines were previously
通过7-取代的2,3-二氢-1,8-萘啶的缩合反应制备一些3,7-二取代的5,6-二氢喹[3,2- c ] [1,8]萘啶(6)描述了具有邻氨基苯乙酮或邻氨基二苯甲酮的-4-(1H)酮(5)。通过与硝基苯加热,将所有5,6-二氢衍生物6转化为完全芳族化合物7。先前仅描述了几个喹[3,2- c ] [1,8]萘啶。