Synthesis of 4-Amino-substituted-6-hydroxy and 11-hydroxynaphtho[2,3-<i>g</i>]quinoline-5,12-diones, and the unexpected formation of disubstituted imidazo[4,5,l-<i>i,j</i>]naphtho[2,3-<i>g</i>]quinolin-7-ones
作者:Martine Croisy-Delcey、Emile Bisagni、Christiane Huel
DOI:10.1002/jhet.5570300111
日期:1993.1
8-dimethoxyquinoline (7a). Whereas 4-chloro-6-hydroxynaphtho[2,3-g]quinoline-5,12-dione (11) was substituted by amines in the usual way to the corresponding 4-amino-substituted derivatives, 4-chloro-11-hydroxynaph-tho[2,3-g]quinoline-5,12-dione (10) led to a mixture of 4-amino derivatives and the unexpected 2,6-disubstituted-imidazo[4,5,l-I-j]naphtho[2,3-g]quinolin-7-ones, 13a-b.
使4-氯喹啉-5,8-二酮(8a)和6-溴-4-氯喹啉-5,8-二酮(8b)与高邻苯二甲酸酐反应,分别得到四环化合物10和11。通过将苯并环丁烯二酮光化学加到4-氯喹啉-5,8-二酮(8a)中以低收率制得6,11-二羟基衍生物12,并通过邻苯二甲酸酐与4-氯-5的Friedel-Crafts反应获得更好的收率。 ,8-二甲氧基喹啉(7a)。而4-氯-6-羟基萘并[2,3 - g ]喹啉-5,12-二酮(11)以通常的方式被胺取代为相应的4-氨基取代的衍生物4-氯-11-羟基萘-邻[2,3 - g ]喹啉-5,12-二酮(10),形成4-氨基衍生物和意外的2,6-二取代-咪唑并[4,5,1- Ij ]萘并[2,3- g ]喹啉-7-ones,13a-b。