reaction involving cyclization followed by cross‐coupling allows the formation of up to three alkyl–alkyl bonds in a single operation by using alkene‐containing alkyl iodides and Grignard reagents (see scheme; acac=acetylacetonate; TMEDA=N,N′,N′‐tetramethyl ethylenediamine). Mechanistic experimental and computational studies suggest a NiI–NiII–NiIII catalytic cycle and the intermediacy of radicals.
提出新颖的断开连接:强大的
镍催化级联反应,包括环化和交叉偶联,通过使用含烯烃的烷基
碘化物和格利雅试剂,一次操作最多可形成三个烷基-烷基键(请参阅方案; acac =
乙酰丙酮酸酯) ; TME
DA = N,N ',N'-
四甲基乙二胺)。力学实验和计算研究表明,Ni I –Ni II –Ni III催化循环和自由基的中介。