Iodine → 2-Iodo-1,1,2,2-tetrafluoroethyl chlorosulfate

Participants

Reaction Conditions

Reaction Steps

Into a 400 mL stainless steel shaker tube was charged iodine (101.6 g, 0.4 mol) and chlorosulfonic acid (46.6 g, 0.4 mol). The reactor was cooled and evacuated, then tetrafluoroethylene (50 g, 0.8 mol) was transferred into the reactor. After being agitated and heated at 50° C. for 8 h, the product mixture was poured into ice water and the organic layer was separated. After drying with magnesium sulfate, the mixture was distilled to give low yield of ICF2CF2OSO2Cl (10 g), and a large amount of ICF2CF2Cl.

Provenance & Evidence