A Visible-Light-Induced α-Aminoalkyl-Radical-Mediated Halogen-Atom Transfer Process: Modular Synthesis of Phenanthridinone Alkaloids
作者:Karunamayee Mondal、Sumitava Mallik、Sunaina Sardana、Mahiuddin Baidya
DOI:10.1021/acs.orglett.3c00358
日期:2023.3.17
A halogen-atom transfer (XAT) strategy utilizing α-aminoalkyl radicals allows the generation of aryl radicals at room temperature, which is applied for intramolecular cyclization reactions en route to biologically relevant alkaloids. Starting from simple halogen-substituted benzamides under visible light irradiation in the presence of an organophotocatalyst (4CzIPN) and nBu3N allows the modular construction
利用 α-氨基烷基自由基的卤素原子转移 (XAT) 策略允许在室温下产生芳基自由基,用于分子内环化反应,生成生物学相关的生物碱。在有机光催化剂 (4CzIPN) 和n Bu 3 N 存在下,从可见光照射下的简单卤素取代苯甲酰胺开始,可以构建菲啶酮核心的模块化结构,从而可以轻松获得药物类似物和生物碱,例如,来自石蒜科的药物类似物和生物碱. 反应途径很可能涉及启用量子力学隧穿的转移事件,以实现芳构化-卤素-原子转移。