2-amino-N,N-diethylbenzenesulfonamide

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane, Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol 1-chlorobutane, Oven drying at 60°

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

Procedure: In a pressure vessel a mixture of 133 g of o-nitro-N,N-diethylbenzenesulfonamide, 5 g of 10% palladium on carbon, and 500 ml of ethyl acetate was shaken at 130° under 500 psi hydrogen pressure until hydrogen was no longer absorbed. The reaction mixture was cooled and the catalyst filtered off. Evaporation of the solvent in-vacuo gave 123 g of o-amino-N,N-diethylbenzenesulfonamide as a viscous oil which slowly crystallized to a solid, m.p. 45°-51°. was no longer absorbed The reaction mixture was cooled the catalyst filtered off Evaporation of the solvent in-vacuo

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

Procedure: In a pressure vessel a mixture of 133 g of o-nitro-N,N-diethylbenzenesulfonamide, 5 g of 10% palladium on carbon, and 500 ml of ethyl acetate was shaken at 130° under 500 psi hydrogen pressure until hydrogen was no longer absorbed. The reaction mixture was cooled and the catalyst filtered off. Evaporation of the solvent in-vacuo gave 123 g of o-amino-N,N-diethylbenzenesulfonamide as a viscous oil which slowly crystallized to a solid, m.p. 45°-51°. was no longer absorbed The reaction mixture was cooled the catalyst filtered off Evaporation of the solvent in-vacuo

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude suflonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane, Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude suflonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol 1-chlorobutane, Oven drying at 60°

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

Procedure: In a pressure vessel a mixture of 133 g of o-nitro-N,N-diethylbenzenesulfonamide, 5 g of 10% palladium on carbon, and 500 ml of ethyl acetate was shaken at 130° under 500 psi hydrogen pressure until hydrogen was no longer absorbed. The reaction mixture was cooled and the catalyst filtered off. Evaporation of the solvent in-vacuo gave 123 g of o-amino-N,N-diethylbenzenesulfonamide as a viscous oil which slowly crystallized to a solid, m.p. 45°-51°. was no longer absorbed The reaction mixture was cooled the catalyst filtered off Evaporation of the solvent in-vacuo

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane. Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol Oven drying at 60°

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane. Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol Oven drying at 60°

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane. Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol Oven drying at 60°

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane. Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol Oven drying at 60°

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

Procedure: To a solution of 114 g of o-amino-N,N-diethylbenzenesulfonamide in a mixture of 400 ml of concentrated hydrochloric acid and 100 ml of glacial acetic acid was added a solution of 50 g of sodium nitrite in 130 ml of water at -5° to 0°. The solution was stirred at 0° for 15 minutes then poured into a mixture of 14 g of cuprous chloride and 100 ml of liquid sulfur dioxide in 550 ml of glacial acetic acid at 0°-5°. This mixture was stirred at 0° for 15 minutes then at room temperature for 3 hours before pouring into three liters of ice water. The crude sulfonyl chloride was filtered off and washed with water. It was then dissolved in 1 l of ethyl ether, washed with water and dried over magnesium sulfate. To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15°. After stirring overnight at room temperature the solid was filtered off, washed with water, ethanol and then 1-chlorobutane. Oven drying at 60° gave 91.8 g N,N-diethyl-1,2-benzenedisulfonamide, m.p. 156°-9°. This mixture was stirred at 0° for 15 minutes The crude sulfonyl chloride was filtered off washed with water It was then dissolved in 1 l of ethyl ether washed with water dried over magnesium sulfate To this ether solution was added 20 ml of liquid anhydrous ammonia at 5°-15° After stirring overnight at room temperature the solid was filtered off washed with water, ethanol Oven drying at 60°

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

Procedure: In a pressure vessel a mixture of 133 g of o-nitro-N,N-diethylbenzenesulfonamide, 5 g of 10% palladium on carbon, and 500 ml of ethyl acetate was shaken at 130° under 500 psi hydrogen pressure until hydrogen was no longer absorbed. The reaction mixture was cooled and the catalyst filtered off. Evaporation of the solvent in-vacuo gave 123 g of o-amino-N,N-diethylbenzenesulfonamide as a viscous oil which slowly crystallized to a solid, m.p. 45°-51°. was no longer absorbed The reaction mixture was cooled the catalyst filtered off Evaporation of the solvent in-vacuo