Addition of hydrofluorocarbons to fluoroolefins
AssigneeDisa
InventorsGennadii G. Belen'Kill, Viacheslav A. Petrov, Paul R. Resnick
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Abstract
A process is disclosed for forming adducts of the formula: RR1R2CCR1R2F or (FR1R2CCRR2CH2)2 where R is CH3, CH2F, or F(CF2)nCH2CH2 (where n is an integer from 1 to 10) each R1 is H, Cl, F or CF3 and each R2 is H, F or CF3. The process in reacting a saturated compound of the formula RF with an olefin of the formula R1R2C═CR1R2 in the liquid phase in the presence of antimony pentafluoride catalyst (provided that when (FR1R2CCR1R2CH2)2 is formed, the saturated compound is CH3CHF2 or CH2FCH2F and anhydrous HF is present).
Claims2
A process for forming an adduct of the formula RR1R2CCR1R2F or (FR1R2CCRR2CH2)2 wherein R is selected from the group consisting of CH3, CH2F, C2H4F and F(CF2)nCH2CH2 where n is an integer from 1 to 10, each R1 is independently selected from the group consisting of H, Cl, F and CF3 and each R2 is independently selected from the group consisting of H, F and CF3, comprising:
- reacting a saturated compound of the formula RF with an olefin of the formula R1R2C═CR1R2 in the liquid phase in the presence of antimony pentafluoride catalyst;
- provided that when (FR1R2CCR1R2CH2)2 is formed, the saturated compound is CH3CHF2 or FCH2CH2F and anhydrous HF is present.
Dependencies are inferred from the claim text.