ones (IIa and IIIa). The reaction proceeded also in THF-H2O or THF-MeOH and yielded IIa. This reaction was extended to 2-(N-ethylanilino)-, 2-(N-hydroxyethylanilino)-, 2-(1,′2′,3′,4′-tetrahydroquinolyl)-2, 2-(N-methyl-m- and p-anisidino)-1,4-naphthoquinones (Ic, Id, VII, XIa and XIb), which underwent similar conversion into the corresponding benzo[c]phenoxazone derivatives (IIc, IId, VIII, XIIa, and
使用带有Pyrex滤镜的高压
汞弧灯在
甲醇中辐照2-(
N-甲基苯胺基)-
1,4-萘醌(Ia)得到7-甲基-12a-羟基-和7-甲基-12a-甲氧基-5-苯并[c]苯
恶唑酮(IIa和IIIa)。反应也在THF-H 2 O或THF-MeOH中进行,得到IIa。该反应扩展至2-(
N-乙基苯胺基)-,2-(N-羟
乙基苯胺基)-,2-(1,'2',3',4'-
四氢喹啉基)-2,2-(N-甲基-间-和对-茴香基)-
1,4-萘醌(Ic,Id,VII,XIa和XIb),它们经历了类似的转化,转化为相应的苯并[c]苯
恶唑酮衍
生物(IIc,IId,VIII,XIIa和XIIIa,和XIIIb)。