Wen L, Zou Z, Zhou N, Sun C, Xie P, Feng P. Electrochemical Fluorination Functionalization of
gem-Difluoroalkenes with CsF as a Fluorine Source: Access to Fluoroalkyl Building Blocks.
Org Lett 2024;
26:241-246. [PMID:
38156980 DOI:
10.1021/acs.orglett.3c03901]
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Abstract
Using easily handled CsF as a fluorine source, an electrochemically metal-free protocol for chemo- and regioselective synthesis of various types of long-chain perfluoroalkyl aromatics with gem-difluoroalkene as a substrate and an alcohol or azole as an additional nucleophile was developed. The eletrochemical transformation could tolerate several functional groups, such as halogens, cyanos, benzyls, and heterocycles, and is amenable to gram-scale. The application of this electrochemical method in radiofluorination was also tested.
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