Visible-Light-Mediated Oxidation of 1-Benzyl-3,4-dihydroisoquinolines with Dioxygen: A Switchable Synthesis of 1-Benzoylisoquinolines and 1-Benzoyl-3,4-dihydroisoquinolines
作者:Hongli Wu、Haifeng Gan、Peipei Ma
DOI:10.1055/a-2160-8903
日期:2023.12
oxidation of 1-benzyl-3,4-dihydroisoquinolines (1-BnDHIQs) for the switchable preparation of a wide range of 1-benzoylisoquinolines (BzIQs) and 1-benzoyl-3,4-dihydroisoquinolines (BzDHIQs) is realized using dioxygen as the oxidant. This protocol provides a facile route for the efficient synthesis of isoquinoline alkaloids. Mechanistic investigations suggest that a radical pathway and an ionic pathway
可见光介导的 1-苄基-3,4-二氢异喹啉 (1-BnDHIQs) 的无金属氧化,用于可切换制备多种 1-苯甲酰基异喹啉 (BzIQs) 和 1-苯甲酰基-3,4-二氢异喹啉(BzDHIQs) 是使用双氧作为氧化剂实现的。该方案为高效合成异喹啉生物碱提供了一条简便的途径。机理研究表明自由基途径和离子途径可能同时存在,这两种途径都通过共同的关键过氧化物中间体进行,产生氧化产物。