A new radical-mediated method for the synthesis of 1-(2-(1,2-diarylvinyl)phenyl)ethan-1-ones by the redox hydroarylation of o-(hydroxyalkyl)arylalkynes with arylsulfonyl chlorides is described. This visible light catalysis method proceeds via a sequence of the radical addition of aryl group across the C-C triple bond, protonation and redox reaction, and represents a new redox transformation reaction directed by a neighboring hydroxyl group.
报道了一种通过邻(羟基烷基)芳基炔与芳基
磺酰氯的氧化性氢芳基化反应,合成1-(2-(1,2-二芳基
乙烯)苯基)乙酮的新型自由基介导方法。该可见光催化方法通过一系列反应过程实现,包括芳基团对碳-碳叁键的自由基加成、质子化和氧化还原反应,并代表了一种由邻位羟基引导的新型氧化还原转化反应。