The direct addition of pyridine and diazine units to electron-poor alkenes has been achieved via a redox radical mechanism that is enabled by limiting the effective concentration of the hydrogen-atom source. The described method is tolerant of acidic functional groups and is generally applicable to the union of a wide range of Michael acceptors and 6-membered heterocyclic halides.
吡啶和二嗪单元直接加到贫电子烯烃中是通过氧化还原自由基机理实现的,该机理可以通过限制氢原子源的有效浓度来实现。所描述的方法对酸性官能团具有耐受性,并且通常适用于多种迈克尔受体和六元杂环卤化物的结合。