2,2,3,3-tetrafluoro-3-(trifluoromethoxy)propanoyl fluoride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of CF2═CFCF3 was gradually added over a 3½ hour time period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of CF2═CFCF3 was gradually added over a 3½ hour time period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (available from 3M Co., approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of hexafluoropropylene was gradually added over a 3½ hour time period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (available from 3M Co., approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of hexafluoropropylene was gradually added over a 3½ hour period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 5-L round bottom 3-neck flask equipped with a −78° C. condenser and mechanical stirred was charged with 1025 g of methanol and 300 g of sodium fluoride. 3-Trifluoromethoxytetrafluoropropionyl fluoride (1561 g, 6.7 mol), prepared as described in Example 1 of U.S. Pat. No. 6,482,979 (Hintzer et al.), was added to the flask at −20° C. The reaction mixture was washed with 800 g water and phased split to give 1490 g of methyl-3-trifluoromethoxypropionate for a 91% yield after fractionation. A 5-liter round bottom flask equipped with a mechanical stirrer, a −78° C. condenser and addition funnel was charged with 1463 g of methyl-3-trifluoromethoxypropionate (6 mol) and 940 g of dimethylformamide. The mixture was stirred at room temperature and 125 g of ammonia (7.4 mol) was added to convert the ester to amide. Methanol was vacuum stripped and 1160 g of pyridine (14.7 mol) was added. The mixture was cooled to −14° C. and 1493 g of trifluoroacetic anhydride (7.1 mol) was added. After addition was completed, 1 kg of water was added and the product began to reflux on the condenser. A total of 1165 g of heptafluoro-3-methoxypropanenitrile, CF3OCF2CF2CN was obtained after distillation. A 5-L round bottom 3-neck flask equipped with a −78° C. condenser 6,482,979 (Hintzer et al.), was added to the flask at −20° C The reaction mixture was washed with 800 g water phased split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A 5-L round bottom 3-neck flask equipped with a −78° C. condenser and mechanical stirred was charged with 1025 g of methanol and 300 g of sodium fluoride. 3-Trifluoromethoxytetrafluoropropionyl fluoride (1561 g, 6.7 mol), prepared as described in Example 1 of U.S. Pat. No. 6,482,979 (Hintzer et al.), was added to the flask at −20° C. The reaction mixture was washed with 800 g water and phased split to give 1490 g of methyl-3-trifluoromethoxypropionate for a 91% yield after fractionation. A 5-liter round bottom flask equipped with a mechanical stirrer, a −78° C. condenser and addition funnel was charged with 1463 g of methyl-3-trifluoromethoxypropionate (6 mol) and 940 g of dimethylformamide. The mixture was stirred at room temperature and 125 g of ammonia (7.4 mol) was added to convert the ester to amide. Methanol was vacuum stripped and 1160 g of pyridine (14.7 mol) was added. The mixture was cooled to −14° C. and 1493 g of trifluoroacetic anhydride (7.1 mol) was added. After addition was completed, 1 kg of water was added and the product began to reflux on the condenser. A total of 1165 g of heptafluoro-3-methoxypropanenitrile, CF3OCF2CF2CN was obtained after distillation. A 5-L round bottom 3-neck flask equipped with a −78° C. condenser 6,482,979 (Hintzer et al.), was added to the flask at −20° C The reaction mixture was washed with 800 g water phased split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of CF2═CFCF3 was gradually added over a 3½ hour time period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a clean dry 600 mL Parr reactor were added 11.6 g (0.20 mol) of anhydrous potassium fluoride and 113.5 g of anhydrous diglyme. The contents of the reactor were stirred and cooled with dry ice, then 230 g (0.96 mol) of CF3OCF2CF2COF (approximately 97 percent purity) was added to the sealed reactor using isolated vacuum. With the reactor at 80° C. and pressure of 80 psig (4900 torr), 154 g (1.03 mol) of CF2═CFCF3 was gradually added over a 3½ hour time period. Following a one hour reaction hold time, the product was recovered from the reaction mixture by distillation and phase split prior to fractionation to give 100 g of 1,1,2,2,4,5,5,5-octafluoro-1-trifluoromethoxy-4-trifluoromethylpentan-3-one, having a boiling point of 77° C. and a purity of 99.8% as determined by gas chromatography. The structure was confirmed by gas chromatography and mass spectroscopy. Into a clean dry 600 mL Parr reactor using isolated vacuum reaction hold time the product was recovered from the reaction mixture by distillation and phase split