The novel photochemical annulation of isoquinoline derivatives to form the 8-oxoprotoberberine derivatives is described. The key step of the reaction is an intramolecular photochemical arylation of 3-chloro-2-phenethyl-1-isoquinolone. The same arylation also proceeds intermolecularly, when 3-chloro-1-isoquinolones are irradiated in benzene.
本研究描述了
异喹啉衍
生物通过光
化学环化反应生成 8-氧代
小檗碱衍
生物的新方法。反应的关键步骤是 3-
氯-2-苯乙基-1-
异喹啉酮的分子内光
化学芳基化反应。当 3-
氯-1-
异喹啉酮在苯中受到辐照时,同样的芳基化反应也会在分子间进行。