Copper-Catalyzed Aminoheteroarylation of Unactivated Alkenes through Distal Heteroaryl Migration
作者:Yungeun Kwon、Wei Zhang、Qiu Wang
DOI:10.1021/acscatal.1c01001
日期:2021.7.16
We report a copper-catalyzed aminoheteroarylation of unactivatedalkenes to access valuable heteroarylethylamine motif. The developed reaction features a copper-catalyzed intermolecular electrophilic amination of the alkenes followed by a migratory heteroarylation. The method applies to alcohol-, amide-, and ether-containing alkenes, overcoming the common requirement of a hydroxyl motif in previous
Iodine-Catalyzed Radical C–H Amination of Nonaromatic Imidazole Oxides: Access to Cyclic α-Aminonitrones
作者:Alexey A. Akulov、Mikhail V. Varaksin、Anna A. Nelyubina、Anton N. Tsmokaluk、Dmitrii G. Mazhukin、Alexsei Y. Tikhonov、Valery N. Charushin、Oleg N. Chupakhin
DOI:10.1021/acs.joc.3c02230
日期:2024.1.5
A straightforward cross-dehydrogenativecouplingapproach to incorporate alicyclic amino residues into the structure of model cyclic aldonitrones, 2H-imidazole oxides, is reported. The elaborated C(sp2)–H functionalization is achieved by employing cyclic amines in the presence of the I2–tert-butyl hydroperoxide (TBHP) reagent system. As a result, a series of 19 novel heterocyclic derivatives were obtained
Photoredox-Catalyzed Amino-Radical-Transfer-Mediated Three-Component Alkylarylation of Alkenes
作者:Di-Di Tang、Yu-Zhao Wang、Chenjiang Liu、Yu Xia、Yan Li
DOI:10.1021/acs.orglett.4c02335
日期:2024.8.2
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。