Bis(fluoroxy)perfluoromethane → 1,3-Dioxolane, 4-chloro-2,2,4-trifluoro-5-(trifluoromethyl)-

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In a 200 ml 5 necked reactor, equipped with a mechanical stirrer, thermocouple, bubbling inlet for introducing the reacting gaseous mixture and an inert gas, 51.3 g (0.346 moles) of CF3—CH═CFCl are introduced. The reactor is then brought, by a cryostat, to the temperature of −70° C. At this point, under strong stirring, a mixture of CF2(OF)2 (BDM) (1 nl/h) and He (3 nl/h) for 3h 52′ (equivalent to 0.173 moles of BDM) is added in a continuous way.

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