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
Operationally simple hydrotrifluoromethylation of alkenes with sodium triflinate enabled by Ir photoredox catalysis
作者:Lei Zhu、Lian-Sheng Wang、Bojie Li、Boqiao Fu、Cheng-Pan Zhang、Wei Li
DOI:10.1039/c6cc01944g
日期:——
We reported herein a single component of Ir-photoredox catalyst is capable to catalyze hydrotrifluoromethylation of terminal alkenes and Michael acceptors with sodium triflinate (Langlois reagent) in methanol under an irradiation...
Sunlight decatungstate photoinduced trifluoromethylations of (hetero)aromatics and electron-poor olefins
作者:Sara Corsico、Maurizio Fagnoni、Davide Ravelli
DOI:10.1039/c7pp00179g
日期:2017.9
(hetero)aromatics and electron-poor olefins. The process made use of the cheap Langlois’ reagent (CF3SO2Na) and occurred under sunlight irradiation in an acetonitrile/water mixture. The trifluoromethylation of (hetero)aromatics required the use of potassium persulfate as an additive and the mono- or bis-trifluoromethylated adducts were obtained, depending on the actual reaction conditions and the chosen substrate
四丁基癸酸铵已被用来光诱导(杂)芳烃和贫电子烯烃的三氟甲基化。该方法使用廉价的Langlois试剂(CF 3 SO 2 Na),在阳光照射下在乙腈/水混合物中进行。(杂)芳族化合物的三氟甲基化需要使用过硫酸钾作为添加剂,并且取决于实际反应条件和所选的底物,获得了单-或双-三氟甲基化的加合物。
Metal-free and light-promoted radical iodotrifluoromethylation of alkenes with Togni reagent as the source of CF<sub>3</sub> and iodine
作者:Redouane Beniazza、Maxime Douarre、Dominique Lastécouères、Jean-Marc Vincent
DOI:10.1039/c7cc00214a
日期:——
Iodotrifluoromethylation of alkenes is effectively conducted by combining benzophenone, “black light”, isopropanol and Togni reagent 1 as the source of both the CF3 group and iodine atom.