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
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
Thermal Rearrangement of Sulfamoyl Azides: Reactivity and Mechanistic Study
作者:Xiaodong Zou、Jiaqi Zou、Lizheng Yang、Guigen Li、Hongjian Lu
DOI:10.1021/acs.joc.7b00308
日期:2017.5.5
The rearrangement of sulfamoyl azides under thermal conditions to form a C–C bond while breaking two C–N bonds is reported. Mechanisticstudy shows that this reaction goes through a Curtius-type rearrangement to form a 1,1-diazene, then which rearranges possibly through both a concerted rearrangement process and a stepwise radical process. This rearrangement could be used in the synthesis of complex