17337-12-1Relevant articles and documents
Trifluoroethylation of olefins with trichlorotrifluoroethane
Puy, Michael Van Der
, p. 133 - 140 (1993)
1,1,1-Trichlorotrifluoroethane was added to seven different olefins using a redox system, giving adducts having the CF3CCl2-C-CCl- subunit.Selective addition to the exocyclic double bond in limonene was observed.The adducts were dechlorinated by catalytic reduction or with tri-n-butyltin hydride.The two-step sequence thus provided a method for appending the trifluoroethyl group (CF3CH2-) to olefins.
HYDROFLUOROCARBON REFRIGERANT COMPOSITIONS AND USES THEREOF
-
, (2008/06/13)
Disclosed herein are hydrofluorocarbon refrigerant or heat transfer fluid compositions that are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab.single pass heat exchangers.
Sodium Perfluoroalkane Carboxylates as Sources of Perfluoroalkyl Groups
Carr, Gillian E.,Chambers, Richard D.,Holmes, Thomas F.,Parker, David G.
, p. 921 - 926 (2007/10/02)
Sodium trifluoroacetate, in the presence of copper(I) iodide, is used as a source of trifluoromethyl to replace halogen by trifluoromethyl in benzenoid and heterocyclic aromatic systems, as well as in alkenyl and alkyl halogen compounds.The mechanism of this interesting copper-assisted process has been explored and an intermediate of the form - is proposed.Introduction of higher perfluoroalkyl groups from their respective sodium perfluoroalkane carboxylates has been demonstrated and the machanistic features are compared with those of the trifluoromethylation process.