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Synthesis of perfluoroethers by liquid phase fluorination |
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| Authors: | Silvana Modena Pierangelo Calini Guglielmo Gregorio Giovanni Moggi |
| Institution: | Montefluos C.R.S., via S. Pietro 50. 20021 Bollate (MI) Italy |
| Abstract: | Liquid phase fluorination of diethyleneglycol dimethyl ether tetraethyleneglycol dimethyl ether, 21,2-dichloro-1,2-difluoroethyl] tetrahydrofuran and 21,2-dichloro-1,2-difluoroethyl] dioxane 1,4 produce the corresponding perfluoroethers in 56, 43, 67 and 74 % yields respectively. The by-products are partially fluorinated compounds and no fragmentation is observed. The simplicity of the reactions and method of preparation make this approach to fluorinated fluids and oils industrially attractive. |
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