The photoredox alkylarylation of styrenes with alkyl <i>N</i>-hydroxyphthalimide esters and arenes involving C–H functionalization
作者:Xia Wang、Ya-Fei Han、Xuan-Hui Ouyang、Ren-Jie Song、Jin-Heng Li
DOI:10.1039/c9cc07494e
日期:——
alkylarylation of styrenes with alkyl NHP esters and arenes to access alkylated arene derivatives through C-C bond cleavage and C-H functionalization is reported. By utilizing visible-light photoredox catalysis, alkyl N-hydroxyphthalimide esters serving as alkyl carbon-centered radicals and a wide range of arenes (e.g., indoles, pyrrole, and electron-rich arenes) as nucleophiles were used to enable the introduction
Iron-Catalyzed Intermolecular 1,2-Difunctionalization of Styrenes and Conjugated Alkenes with Silanes and Nucleophiles
作者:Yuan Yang、Ren-Jie Song、Xuan-Hui Ouyang、Cheng-Yong Wang、Jin-Heng Li、Shenglian Luo
DOI:10.1002/anie.201702349
日期:2017.6.26
The first iron‐catalyzed 1,2‐difunctionalization of styrenes and conjugated alkenes with silanes and either N or C, using an oxidative radical strategy, is described. Employing FeCl2 and di‐tert‐butyl peroxide allows divergent alkene 1,2‐difunctionalizations, including 1,2‐aminosilylation, 1,2‐arylsilylation, and 1,2‐alkylsilylation, which rely on a wide range of nucleophiles, namely, amines, amides
Visible light photoredox alkylazidation of alkenes with sodium azide and heteroarenium salts: entry to azido-containing 1,4-dihydropyridines
作者:Yuan Yang、Chong-Hui Xu、Zhi-Qiang Xiong、Jin-Heng Li
DOI:10.1039/d0cc03235b
日期:——
A three-component alkene alkylazidation using sodium azide as the azido resource and heteroarenium salts as functionalized alkyl reagents for producing highly valuable 2-azido-1-(1,4-dihydropyridin-4-yl)-ethanes is described. This reaction allows the incorporation of both an azido group and a 1,4-dihydropyridin-4-yl group across CC bonds to construct two new bonds in a single reaction step, and represents
Oxidative three-component 1,2-alkylarylation of alkenes with alkyl nitriles and N-heteroarenes
作者:Xuan-Hui Ouyang、Ming Hu、Ren-Jie Song、Jin-Heng Li
DOI:10.1039/c8cc06509h
日期:——
An indium-promoted intermolecular oxidative 1,2-alkylarylation of alkenes with alkylnitriles and N-heteroarenes enabled by C(sp3)–H/C(sp2)–Hfunctionalization is presented. This oxidative radical strategy allows the formation of two new C–C bonds through transformations of two different C–H bonds across the alkenes in a controlled single-step manner, and offers a general, highly atom-economic route
提出了通过C(sp 3)–H / C(sp 2)–H官能化作用实现的烯烃与烷基腈和N-杂芳烃的铟促进的分子间氧化1,2-烷基芳基化反应。这种氧化自由基策略允许通过可控的单步方式,通过烯烃上两个不同的C–H键的转变形成两个新的C–C键,并为生产新的功能化化合物提供了一条通用的,高度原子经济的途径N-杂芳烃,包括吲哚,吡咯并[2,3- b ]吡啶,吡咯并[3,2,1- ij ]喹诺酮和吡咯。
Copper-catalyzed intermolecular oxidative trifluoromethyl-arylation of styrenes with NaSO<sub>2</sub>CF<sub>3</sub> and indoles involving C–H functionalization
作者:Man-Yi Min、Ren-Jie Song、Xuan-Hui Ouyang、Jin-Heng Li
DOI:10.1039/c9cc00469f
日期:——
A new copper-catalyzed three-componentoxidative 1,2-trifluoromethylarylation of styrenes with NaSO2CF3 and indoles involving aryl C–H bond functionalization is described. This reaction is initiated by single electron transfer upon utilizing TBPB as an oxidant, thus enabling introduction of a CF3 group and an aryl group into the CC bond of alkenes in a single step. This method represents a highly atom