4.5 Article

Fluorinated Johnson reagent for transfer-trifluoromethylation to carbon nucleophiles

Journal

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2008, Issue 20, Pages 3465-3468

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200800419

Keywords

fluorine; trifluoromethylation; electrophilic; sulfur; C-C bond formation

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A novel reagent, [(oxido)phenyl(trifluoromethyl)-lambda(4)-sulfanylidene]dimethylammonium tetrafluoroborate has been developed for the electrophilic trifluoromethylation of carbon nucleophiles. The reagent was designed as a trifluorinated version of a Johnson-type methyl-transfer reagent. The first example of vinylogous trifluoromethylation of dicyanoalkylidenes is also demonstrated. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).

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