report herein a deoxygenative radical multicomponent reaction involving alcohols, aryl alkenes, and cyanopyridine under photoredox conditions. This method is photoredox-neutral, suitable for late-stage modification, and compatible with a wide array of alcohols as alkyl radical sources, including primary, secondary, and tertiary alcohols. This reaction comprises a radical relay mechanism encompassing
作者:Tang, Di-Di、Wang, Yu-Zhao、Liu, Chenjiang、Xia, Yu、Li, Yan
DOI:10.1021/acs.orglett.4c02335
日期:——
photoredox-catalyzed three-component alkylarylation of vinyl arenes with alkylboronic pinacol esters (APEs) and cyanoarenes via radicaladdition/cross-coupling to construct 1,1-diarylalkanes. In this transformation, alkyl radicals were easily available by visible-light-induced oxidative N–H cleavage of morpholine, which used APEs as a radical precursor. Furthermore, this protocol exhibited a broad
我们在此报道了一种新型的光氧化还原催化的乙烯基芳烃与烷基硼频哪醇酯(APE)和氰基芳烃的三组分烷基芳基化反应,通过自由基加成/交叉偶联构建1,1-二芳基烷烃。在这种转化中,通过可见光诱导的吗啉氧化 N-H 裂解,可以很容易地获得烷基自由基,其中使用 APE 作为自由基前体。此外,该方案表现出广泛的底物范围,可用于各种苯乙烯、APE 和氰基芳烃,以及生物活性分子衍生物。
10.1021/acs.orglett.4c02205
作者:Pan, Xian-Hua、Hou, Ya-Ping、Shi, Chang-Xin、Wang, Ya-Ping、Niu, Rui-Qi、Guo, Lei
DOI:10.1021/acs.orglett.4c02205
日期:——
A novel photoredox/nickel dual catalytic intermolecular alkylarylation of vinylarenes with tertiary and secondary alkyltrifluoroborates and aryl bromides is described, which affords 1,1-diarylalkane frameworks that are found in various natural products as well as functionalized molecules in good to excellent yield and regioselectivity through a radical relay process. Notably, this redox-neutral reaction