A process for the preparation of 4-fluoro-1,3-dioxolan-2-one

Details A process for the preparation of 4-fluoro-1,3-dioxolan-2-one A process for the preparation of 4-fluoro-1,3-dioxolan-2-one

C - Chemistry, Metallurgy

07

D

C07D 317/42 (2006.01)

Patent

CA 2517395

The invention relates to a process for the preparation of 4-fluoro-1,3- dioxolan-2- one. According to the invention, 3 to 20% by weight 4-fluoro-1,3-dioxolan-2-one (relative to ethylene carbonate) is added to ethylene carbonate as solvent for ethylene carbonate and fluorine or a mixture containing fluorine in an inert gas is introduced into this solution at 15 to 45°C.

Selon le procédé présenté, on mélange du carbonate d'éthylène avec, comme solvant pour ce carbonate, 3 à 20 % en poids de 4-fluoro-1,3-dioxolan-2-one ( par rapport au carbonate d'éthylène) et on introduit dans la solution obtenue, à une température de 15-45 ·C, du fluor ou un mélange contenant du fluor dans un gaz inerte.

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