Methyl pentafluoroethyl

Methyl Pentafluoroethyl Tellurium4 A mixture of 9.0 g (57.1 mmol) dimethyl tellurium and 17.9 g... 

Methyl Pentafluoroethyl Tellurium A mixture of 9.0 g (57.1 mmol) dimethyl tellurium and 17.9 g (72.8 mmol) pentafluoroethyl iodide is treated with 2.3 g (22.8 mmol) triethylamine at — 78° in a flask equipped with a low-temperature reflux condenser. The mixture is allowed to warm to 20 and then irradiated for 3 h with the reflux condenser kept at — 35°. The mixture is fractionally distilled to give methyl pentafluoroethyl tellurium as a light-yellow liquid that is stable toward water but easily oxidized yield 63% b.p. 42°. 

Fluorination. Fluorination of unsaturated compounds with CoF, is carried out in a stainless steel vessel from -196° to room temperature. The method transforms methyl trifluorovinyl ether to methyl pentafluoroethyl ether in 70% yield. 

Methyl pentafluoroethyl ether FIFE-254cb2 CH3OCF3CHF3 2.6 0.28 1260 359 109... 

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