Abstract
AbstractAn SN2‐type trifluoromethylation of benzyl halides under transition‐metal‐free conditions has been developed using trifluoromethyltrimethylsilane (CF3SiMe3, Ruppert−Prakash reagent) and CsF in 1,2‐dimethoxyethane (DME). Under the developed reaction conditions, the in situ generated trifluoromethyl anion (CF3−) overcame the instability and displayed enhanced nucleophilicity in the presence of DME. This method provides an efficient approach for the generation of various (2,2,2‐trifluoroethyl)arenes such as those bearing alkyl, alkoxy, halo (F, Cl, and Br) and trifluoromethyl groups on the benzene rings.
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