406-46-2Relevant academic research and scientific papers
Perfluoro-4-methyl-1,3-dioxole: A new monomer for high-Tg amorphous fluoropolymers
Russo, Antonio,Navarrini, Walter
, p. 73 - 78 (2004)
A 4-Chloro-5-trifluoromethyl-2,2,4-trifluoro-1,3-dioxolane (1) was synthesised by reaction of CF2(OF)2 with CF3-CH=CFCl; the elimination of HCl from (1) in basic conditions led to the formation of dioxole perfluoro-4-methyl-1, 3-dioxole (2). Both these synthetic steps gave the corresponding product in high yield. A new synthetic route for the preparation of CF3-CH=CFCl, starting from CF2ClBr and CH2=CF2, together with some examples of polymerisation products obtained by reaction of dioxole (2) with fluoroolefins are also reported.
PROCESS FOR THE PRODUCTION OF CHLORINATED AND/OR FLUORINATED PROPENES
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Page/Page column 8, (2011/04/25)
The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
Perfluorodioxoles
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, (2008/06/13)
Perfluoro-4-alkyl-1,3-dioxoles having the general formula wherein Rfis a perfluoroalkylic radical having from 1 to 5 carbon atoms, allow to prepare copolymers with Tg higher than those of the copolymers containing the same molar percentage of fluorinated dioxoles of the art.
New perfluorodioxoles
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, (2008/06/13)
Perfluoro-4-alkyl-1,3-dioxoles having the general formula wherein Rfis a perfluoroalkylic radical having from 1 to 5 carbon atoms, allow to prepare copolymers with Tg higher than those of the copolymers containing the same molar percentage of fluorinated dioxoles of the art.
