作者:Masami Kawase、Yuko Miyake、Takeshi Sakamoto、Masahiro Shimada、Yasuo Kikugawa
DOI:10.1016/s0040-4020(01)80029-6
日期:1989.1
basis for the above synthesis, a facile preparation of 6-methoxybenzo[h]quinolines from the N-methoxyamide 8 was developed using the intramolecular trapping of a N-methoxy-N-acylnitrenium ion, the acid catalyzed regiospecific direct methoxylation, and the aromatization of dihydrocarbostyril moiety to quinoline moiety via thiolactam formation.
以令人满意的产率完成了标题化合物的十步全合成。作为上述合成的基础,使用分子内捕获的N-甲氧基-N-酰基氮re离子,酸催化的区域特异性直接甲氧基化和N-甲氧基酰胺8,开发了一种由N-甲氧基酰胺8制备6-甲氧基苯并[h]喹啉的简便方法。通过硫代内酰胺的形成将二氢卡司丁酮部分芳构化为喹啉部分。