1743-96-0Relevant articles and documents
2-Trifluoromethyl-1,3-dithianylium triflate: A convenient 'masked' electrophilic pentafluoroethylation reagent
Sevenard, Dmitri V.,Kirsch, Peer,Lork, Enno,R?schenthaler, Gerd-Volker
, p. 5995 - 5998 (2003)
With 2-trifluoromethyl-1,3-dithianylium triflate for the first time the synthesis, isolation and full structural characterization of an α-perfluoroalkylcarbenium salt was achieved. The title compound can be easily obtained on a preparative scale. The thermally stable dithianylium salt in combination with fluorodesulfurization chemistry is a promising novel reagent for the electrophilic polyfluoroalkylation of organic substrates, demonstrated by the pentafluoroethylation of O-nucleophiles.
FLUORINATION PROCESS
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Page/Page column 6-7, (2015/01/16)
It has been found that a compound of formula (I) R-CF2-O-Ar, wherein R is a fluorinated alkyl group or an optionally substituted aromatic or heteroaromatic group and Ar is an optionally substituted aromatic or heteroaromatic group, can be produced by a process comprising a step of reacting a compound of formula (II) R-C(O)-O-Ar wherein R and Ar are as defined above with a fluorination agent at a temperature of below +100°C.