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
Anodically Coupled Electrolysis for the Heterodifunctionalization of Alkenes
作者:Ke-Yin Ye、Gisselle Pombar、Niankai Fu、Gregory S. Sauer、Ivan Keresztes、Song Lin
DOI:10.1021/jacs.7b13387
日期:2018.2.21
Herein, we discuss the strategic use of anodically coupled electrolysis, an electrochemical process that combines two parallel oxidative events, as a complementary approach to existing methods for redox organic transformations. Specifically, we demonstrate anodically coupled electrolysis in the regio- and chemoselective chlorotrifluoromethylation of alkenes.
Consequently, a large number of methods have been developed for introducing a CF3 group into organic compounds. However, innovative protocols enabling direct access to alkyl-CF3 moieties are still sought after. In this context, we report a visible-light-induced formal trifluoropropanation of various alkyl and aryl halide derivatives using the 2-Bromo-3,3,3-trifluoro-1-propene (BTP) as a readily available building
A diboron‐mediated rhodium‐catalysed transferhydrogenation system using water as the hydrogen donor is developed. The new system features broad substrate scope, good functional group tolerance, and controllable chemoselectivity. This rhodium‐based catalytic system provides a new tool for transferhydrogenation.