Perfluorooctanesulfonamide

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a 1 L 3-neck flask equipped with an agitator, thermometer, and a reflux condenser was placed 171 g (0.3 mole) of N,N-bis(2-hydroxyethyl)perfluorooctanesulfonamide (prepared from perfluorooctanesulfonamide and ethylenechlorohydrin as described in Example 2 of U.S. Pat. No. 4,289,892) and 277.5 g (3.0 moles) of epichlorohydrin. The reaction mixture was stirred and heated to 65° C. Then 12.2 g (of a total of 53 g, 1.3 moles) of sodium hydroxide was added. The reaction mixture was heated to 90° C. and stirred at that temperature for 4 hours, cooled to about 40° C., and filtered from sodium chloride. The filter cake was then washed with about 50 mL epichlorohydrin. The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. and stirred at that temperature for 4 hours. The reaction mixture was cooled, filtered, and the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin. GC and infrared spectroscopic (IR) analysis of the product indicated the presence of N,N-bis(2-glycidoxyethyl)perfluorooctanesulfonamide in about 90% purity. The impurity was mainly N-(2-hydroxyethyl), N(2-glycidoxyethyl)perfluorooctanesulfonamide. Into a 1 L 3-neck flask equipped with an agitator thermometer, and a reflux condenser was placed The reaction mixture was heated to 90° C. stirred at that temperature for 4 hours cooled to about 40° C. filtered from sodium chloride The filter cake was then washed with about 50 mL epichlorohydrin The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. stirred at that temperature for 4 hours The reaction mixture was cooled filtered the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a 1 L 3-neck flask equipped with an agitator, thermometer, and a reflux condenser was placed 171 g (0.3 mole) of N,N-bis(2-hydroxyethyl)perfluorooctanesulfonamide (prepared from perfluorooctanesulfonamide and ethylenechlorohydrin as described in Example 2 of U.S. Pat. No. 4,289,892) and 277.5 g (3.0 moles) of epichlorohydrin. The reaction mixture was stirred and heated to 65° C. Then 12.2 g (of a total of 53 g, 1.3 moles) of sodium hydroxide was added. The reaction mixture was heated to 90° C. and stirred at that temperature for 4 hours, cooled to about 40° C., and filtered from sodium chloride. The filter cake was then washed with about 50 mL epichlorohydrin. The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. and stirred at that temperature for 4 hours. The reaction mixture was cooled, filtered, and the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin. GC and infrared spectroscopic (IR) analysis of the product indicated the presence of N,N-bis(2-glycidoxyethyl)perfluorooctanesulfonamide in about 90% purity. The impurity was mainly N-(2-hydroxyethyl), N(2-glycidoxyethyl)perfluorooctanesulfonamide. Into a 1 L 3-neck flask equipped with an agitator thermometer, and a reflux condenser was placed The reaction mixture was heated to 90° C. stirred at that temperature for 4 hours cooled to about 40° C. filtered from sodium chloride The filter cake was then washed with about 50 mL epichlorohydrin The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. stirred at that temperature for 4 hours The reaction mixture was cooled filtered the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin

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

Procedure: 49.4 g (0.099 mol) of perfluorooctane sulphonamide and 2.37 g (0.099 mol) of lithium hydroxide were introduced into 448 g of water and dissolved at ca. about 50° C. with stirring. A 10% solution of C8F17SO2NHLi was obtained. dissolved at ca. about 50° C.

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a 1 L 3-neck flask equipped with an agitator, thermometer, and a reflux condenser was placed 171 g (0.3 mole) of N,N-bis(2-hydroxyethyl)perfluorooctanesulfonamide (prepared from perfluorooctanesulfonamide and ethylenechlorohydrin as described in Example 2 of U.S. Pat. No. 4,289,892) and 277.5 g (3.0 moles) of epichlorohydrin. The reaction mixture was stirred and heated to 65° C. Then 12.2 g (of a total of 53 g, 1.3 moles) of sodium hydroxide was added. The reaction mixture was heated to 90° C. and stirred at that temperature for 4 hours, cooled to about 40° C., and filtered from sodium chloride. The filter cake was then washed with about 50 mL epichlorohydrin. The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. and stirred at that temperature for 4 hours. The reaction mixture was cooled, filtered, and the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin. GC and infrared spectroscopic (IR) analysis of the product indicated the presence of N,N-bis(2-glycidoxyethyl)perfluorooctanesulfonamide in about 90% purity. The impurity was mainly N-(2-hydroxyethyl), N(2-glycidoxyethyl)perfluorooctanesulfonamide. Into a 1 L 3-neck flask equipped with an agitator thermometer, and a reflux condenser was placed The reaction mixture was heated to 90° C. stirred at that temperature for 4 hours cooled to about 40° C. filtered from sodium chloride The filter cake was then washed with about 50 mL epichlorohydrin The combined filtrates along with the remaining sodium hydroxide were heated to 90° C. stirred at that temperature for 4 hours The reaction mixture was cooled filtered the filtrate concentrated under vacuum at a temperature of 50° to 90° C. to remove excess epichlorohydrin