Regioselective <i>N</i>-Methylation of 6-Chloroindolo[3,2-<i>c</i>]quinolines and Their Amination Reactivity at the C-6 Position
作者:Ning Wang、Kento Imai、Cui-Qing Pang、Ming-qi Wang、Mizuho Yonezawa、Yu Zhang、Junzo Nokami、Tsutomu Inokuchi
DOI:10.1246/bcsj.20130063
日期:2013.7.15
The treatment of 6-chloroindolo[3,2-c]quinoline 6 with NaH–MeI led to methylation at N-11, forming 8, while the reaction of 6 with MeI with heating gave the corresponding 5-methylated quinolinium salt whose SNAr with water smoothly proceeded to form 5-methylindolo[3,2-c]quinolin-6-one 3b. The amination reactivity at the C-6 was assigned in the order of 6 > 11-methylated 8.
用 NaH-MeI 处理 6-氯吲哚并[3,2-c]喹啉 6 会导致 N-11 处发生甲基化,生成 8,而 6 与 MeI 反应并加热会生成相应的 5-甲基化喹啉鎓盐,其 SNAr 与水反应会顺利生成 5-甲基吲哚并[3,2-c]喹啉-6-酮 3b。C-6 处的胺化反应性依次为 6 > 11-甲基化的 8。