blue-light-emitting diode (LED) light. The reaction proceeds with α-bromoesters, α-bromonitriles, and α-bromo-γ-lactones along with terminal and 1,2-disubstituted internal alkenes. Reactions with indenes and 1,1-disubstituted alkenes generate alkylated alkenes. Mechanistic studies by product selectivity and three-way competitive crossover experiments suggest that the reaction operates by a radical-addition radical-pairing
我们公开了在蓝光发光二极管(LED)光下未活化的烯烃与α-
溴羰基化合物的催化光氧化还原碳
溴化反应。该反应以 α-
溴酯、α-
溴腈和 α-
溴-γ-内酯以及末端和 1,2-二取代的内部烯烃进行。与
茚和 1,1-二取代烯烃反应生成烷基化烯烃。通过产物选择性和三向竞争交叉实验进行的机理研究表明,该反应通过自由基加成自由基配对(RARP)机制进行。催化转化是通过 Br –(或 Br 3 –)而不是烷基(R • )对 PC •+进行单电子还原来实现的,产物是通过 Br •(或 Br 2 •– ) 和R • ,而不是Br –和碳正离子(R + )的组合。