Controllable Chemoselectivity in Visible‐Light Photoredox Catalysis: Four Diverse Aerobic Radical Cascade Reactions
作者:Xinfei Liu、Xinyi Ye、Filip Bureš、Hongjun Liu、Zhiyong Jiang
DOI:10.1002/anie.201505193
日期:2015.9.21
Reported is the controllable selectivity syntheses of four distinct products from the same starting materials by visible‐light photoredox catalysis. By employing a dicyanopyrazine‐derived chromophore (DPZ) as photoredox catalyst, an aerobic radical mechanism has been developed, and allows the reactions of N‐tetrahydroisoquinolines (THIQs) with N‐itaconimides to through four different pathways, including addition‐cyclization
报告了通过可见光光氧化还原催化可控地合成同一原料的四种不同产物的选择性。通过使用衍生自二氰基吡嗪的生色团(DPZ)作为光氧化还原催化剂,开发了一种需氧自由基机理,并使N-四氢异喹啉(THIQs)与N-衣康酰亚胺反应通过四种不同途径进行,包括加成环化,加成-消除,加成偶联和加质子化,具有令人满意的化学选择性。当前的策略提供了以中等到优异的产率直接获得四种不同但有价值的N-杂环加合物的途径。