Starting from Styrene: A Unified Protocol for Hydrotrifluoromethylation of Diversified Alkenes
作者:Yi-Fei Yang、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1021/acs.orglett.1c03630
日期:2021.12.3
In contrast with unactivated alkenes, the corresponding hydrotrifluoromethylation of styrene has remained challenging due to the strong propensity of styrene for oligomerization and polymerization. On the basis of our newly developed trifluoromethylation reagent, TFSP, herein we present a general method for the hydrotrifluoromethylation of styrene under photoredox catalysis. The substrate scope was
Catalytic Intermolecular Dicarbofunctionalization of Styrenes with CO<sub>2</sub>
and Radical Precursors
作者:Veera Reddy Yatham、Yangyang Shen、Ruben Martin
DOI:10.1002/anie.201706263
日期:2017.8.28
A redox‐neutral intermolecular dicarbofunctionalization of styrenes with CO2 at atmospheric pressure and carbon‐centered radicals is described. This mild protocol results in multiple C−C bond‐forming reactions from simple precursors in the absence of stoichiometric reductants, thus exploiting a previously unrecognized opportunity that complements existing catalytic carboxylation events.
Visible-light-induced thiotrifluoromethylation of terminal alkenes with sodium triflinate and benzenesulfonothioates
作者:Weiguang Kong、Hejun An、Qiuling Song
DOI:10.1039/c7cc03520a
日期:——
An unconventional reductive quenching cycle was developed to realize the visible-light-induced thiotrifluoromethylation of terminalalkenes. CF3SO2Na was used as an easy to handle CF3 radical source to afford the desired products in moderate to good yields. Mild reaction conditions and a broad substrate scope feature in this transformation.
开发了非常规的还原淬灭循环以实现可见光诱导的末端烯烃的硫代三氟甲基化。CF 3 SO 2 Na用作易于处理的CF 3自由基源,以中等至良好的产率提供所需的产物。这种转化具有温和的反应条件和广泛的底物范围。
Radical C−H Bond Trifluoromethylation of Alkenes by High‐Valent Copper(III) Trifluoromethyl Compounds
developed that allows direct vinylic C−H bond trifluoromethylation of 1,1‐diarylalkenes by a high‐valent copper(III) trifluoromethyl complex, producing biologically active trifluoromethylated alkenes (as well as trifluoromethylated carbocyclic compounds). This fundamental reactivity of Cu(III)−CF3 compounds has thus far been unknown. The presence of a tertiary amine is crucial to this reaction, acting