1,1,2,3,3,3-HEXAFLUOROPROPYL IODIDE synthesis

Yield:-

Reaction Conditions:

with hydrogen iodide;oxygen at 270; under 2250.23 Torr;

Steps:

2 Example 2

A chromium oxyfluoride catalyst containing between 15% and 20% by weight of fluorine was introduced into a tubular reactor made of Inconel 600. The catalyst was preactivated in the presence of an O₂ gas stream at a temperature of 300° C. A gaseous stream of hexafluoropropene and a gaseous stream of hydrogen iodide prepared from H₂ and I₂ (HFP/HI mole ratio=1/2) were passed over this catalyst at a temperature of 270° C. under 3 bar. At the reactor outlet, the gases were washed and then dried and condensed in a cold trap. A sample was taken and analyzed by gas chromatography (area percentage). The conversion of hexafluoropropene was 95% for a selectivity towards CF₃-CHF-CF₂I of 97%.

References:

US2023/75839,2023,A1 Location in patent:Paragraph 0123