Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1979-12-26
1982-02-02
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568400, 568401, 568683, 568684, C07C 3134, C07C 3138
Patent
active
043140874
ABSTRACT:
Hexafluoropropylene may be conventionally oxidized to form an impure mixture comprising hexafluoroacetone and residual hexafluoropropylene, which materials are separable only with difficulty. The impure mixture may be subjected to reducing conditions to hydrogenate the hexafluoroacetone to a hexafluoroisopropanol product, which product is easily separable from the hexafluoropropylene impurity, which impurity may be recycled for further oxygenation and production of the acetone. Alternatively, hexafluoroisopropanol may be conventionally made from hexachloroacetone to form an impure mixture of hexafluoroacetone and HF. When this impure mixture is hydrogenated, the resulting hexafluoroisopropanol, mixed with hydrogen fluoride, is formed. Either of these alcohol products may be reacted with hydrogen fluoride and a formaldehyde to obtain a fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether, which is a useful anesthetic.
REFERENCES:
patent: 3284347 (1966-11-01), Hutton et al.
patent: 3702872 (1972-11-01), Regan
Middleton, W. J. et al., JACS vol. 86, pp. 4948-4952, Nov. 20, 1964.
Baxter Travenol Laboratories Inc.
Flattery Paul C.
Hensley Max D.
Killos Paul J.
Kirby, Jr. John P.
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