biologically active molecules. We found that simple biphenyl substrates derived from amino acids participate in a radical cascade reaction under visible light irradiation in the presence of [IrdF(CF3)ppy}2(dtbpy)]PF6 to enable the direct construction of bicyclo[2.2.2]octene structures. Isotopic labeling experiments suggested that intramolecular hydrogen atom transfer is involved in the cascade processes
桥连多环系统构成了众多
天然产物和
生物活性分子的核心结构。我们发现,在[IrdF(CF 3 )ppy} 2 (dtbpy)]PF 6存在下,源自
氨基酸的简单
联苯底物在可见光照射下参与自由基级联反应,从而能够直接构建双环[2.2 .2]
辛烯结构。同位素标记实验表明分子内氢原子转移参与级联过程。