A visible-light mediated ring opening reaction of alkylidenecyclopropanes for the generation of homopropargyl radicals
作者:Xiao-Yu Zhang、Chao Ning、Ben Mao、Yin Wei、Min Shi
DOI:10.1039/d1sc01889b
日期:——
Classical cyclopropylcarbinyl radical clock reactions have been widely applied to conduct mechanistic studies for probing radical processes for a long time; however, alkylidenecyclopropanes, which have a similar molecular structure to methylcyclopropanes, surprisingly have not yet attracted researcher's attention for similar ring opening radical clock processes. In recent years, photocatalytic NHPI
经典的环丙基羰基自由基时钟反应长期以来被广泛应用于探测自由基过程的机理研究;然而,与甲基环丙烷具有相似分子结构的亚烷基环丙烷令人惊讶地尚未因类似的开环自由基时钟过程而引起研究人员的注意。近年来,光催化NHPI酯活化化学取得了长足的发展,为交叉偶联反应提供了新的合成路线。在此,我们希望报道一种在光氧化还原催化下使用带有亚烷基环丙烷的创新NHPI酯的非经典开环自由基时钟反应,为直接制备各种炔基衍生物提供全新的合成方法。该方案的潜在合成效用在生物活性分子或其衍生物和药用物质的多种转化和简便合成中得到证明。