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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2254322Generated: October 25, 2026

Dichlorodifluoromethane → 4-Bromo-2,2,4,5,5-pentafluoro-1,3-dioxolane

https://huagongshe.com/reaction/2254322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichlorodifluoromethaneHCID 6391—
Reactant1-Bromo-1,2,2-trifluoroetheneHCID 11730—
ReactantBis(fluoroxy)perfluoromethaneHCID 140054—
SolventNitrogenHCID 947—
Product4-Bromo-2,2,4,5,5-pentafluoro-1,3-dioxolaneHCID 19745410—

Reaction Conditions

Temperature-70 °C

Reaction Steps

Into a multineck glass reactor equipped with: magnetic entrainment mechanical stirrer, reflux cooler, thermocouple, inner plunging pipes for introducing the reagents, and maintained at a temperature of -70° C., there were simultaneously fed--after having introduced 75 ml of dichlorodifluoromethane--0.75 l of bis(fluoroxy)difluoromethane at a flowrate of 0.375 l/h diluted with N2 (0.5 l/h) and bromotrifluoroethylene (5.4 g/h) for 2 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05235074
Source datasetuspto-grants-1993_08
ORD IDord-2446786a72964a878d77a35fabb81709
Source noteuspto-grants-1993_08