N-benzyl-N-ethylaniline

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

Procedure: N-benzyl-N-phenyl-N-ethylamine (2.25 g, 0.0107 mol) was dissolved in anhydrous dichloromethane (80 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (4.36 g, 0.0107 mol) was added in 6 equal portions over a 20 min. period. Stirring was continued at ambient temperature for 20 hours; the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-ethylamine (2.38 g, 0.0082 mol) as a colorless oil. the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

Procedure: N-benzyl-N-phenyl-N-ethylamine (2.25 g, 0.0107 mol) was dissolved in anhydrous dichloromethane (80 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (4.36 g, 0.0107 mol) was added in 6 equal portions over a 20 min. period. Stirring was continued at ambient temperature for 20 hours; the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-ethylamine (2.38 g, 0.0082 mol) as a colorless oil. the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

Procedure: N-benzyl-N-phenyl-N-ethylamine (2.25 g, 0.0107 mol) was dissolved in anhydrous dichloromethane (80 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (4.36 g, 0.0107 mol) was added in 6 equal portions over a 20 min. period. Stirring was continued at ambient temperature for 20 hours; the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-ethylamine (2.38 g, 0.0082 mol) as a colorless oil. the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 30.0 g. of 100% sulfuric acid is added N-benzyl-N-ethylaniline (30.0 g.) dropwise below about 50° C. To this solution is added, at 50°-60° C., 60% oleum (30.0 g.) with good stirring. The mixture is stirred and heated at about 60° C. for three hours and then drowned into 200 ml of water. The free sulfonic acid (Coupler I) which is mostly the meta isomer with a small amount of para, precipitates on standing and is collected by filtration, washed with water, and dried. N-Benzylanilines containing groups such as alkyl, alkoxy, and halogen in the ortho, meta, or para positions of the benzyl group may also be sulfonated by this procedure. The exact location of the sulfonic acid group in these cases is often not known and mixtures usually are produced. To this solution is added, at 50°-60° C. precipitates on standing is collected by filtration washed with water dried mixtures usually are produced

Conditions: temp:210.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 182 parts of N-ethylaniline, 170 parts of benzyl alcohol and 10 parts of triphenyl phosphite are mixed whilst stirring and next heated to an internal temperature of 184° C, at which the elimination of water commences. The mixture is then heated to an internal temperature of 210° C in the course of 8 hours. During this time, 25 parts of water have distilled off and the condensation has ended. The excess ethylaniline and unconverted benzyl alcohol are then distilled off. 276 parts of N-ethyl-N-benzyl-aniline, corresponding to a yield of 87% of theory, distil at a boiling point of 140° - 144° C/5 mm Hg. During this time, 25 parts of water have distilled off The excess ethylaniline and unconverted benzyl alcohol are then distilled off 276 parts of N-ethyl-N-benzyl-aniline, corresponding to a yield of 87% of theory, distil at a boiling point of 140° - 144° C/5 mm Hg

Conditions: temp:-5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Chloro-4-amino benzene sulphonylfluoride (1 part) was stirred in acetic/propionic acid 86/14 vol/vol (15 parts) and cooled to -5° C. Nitrosyl sulphuric acid solution (1.9 parts) was added dropwise then stirred at 0°-5° C. for 2 hours. The diazo solution was then added to a stirred mixture of N-ethyl-N-benzyl aniline (2.0 parts), methanol (50 parts), sulphamic acid (0.5 parts) and sodium acetate (5 parts) with ice/water (100 parts) at 0°-5° C. After stirring under these conditions for 1 hour, the dye was filtered off and washed well with water. The damp solid was slurried in methanol (100 parts) and re-filtered. Dried at 50° C. to yield the product 4-(2-chloro-4-fluorosulphonyl phenylazo)-N-ethyl-N-benzyl aniline (1.5 parts). When applied to polyester materials from an aqueous dispersion the dye gave orange shades. λmax 483 nm After stirring under these conditions for 1 hour the dye was filtered off washed well with water re-filtered Dried at 50° C.

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

Procedure: 3-Amino-4-chloro benzene sulphonyl fluoride (2 parts) was stirred in acetic/propionic acid 86/14 vol/vol (25 parts) and cooled to 0°-5° C. Nitrosyl sulphuric acid solution (3.8 parts) was added dropwise at 0°-5° C. and stirred under these conditions for 2 hours. The diazo solution was then added to a mixture of N-ethyl-N-benzyl aniline (2.7 parts), methanol (100 parts) and sulphamic acid (1 part) stirring at 0°-5° C. After stirring under these conditions for 30 mins, ice/water (100 parts) was added and the mixture stirred for a further 1 hour. The product was isolated by filtration, washed with water and pulled dry. The damp solid was then slurried in methanol (100 parts) and refiltered. Dried at 50° C. to yield 4-(2-chloro-5-fluorosulphonylphenylazo)-N-ethyl-N-benzyl aniline (2.3 parts). cooled to 0°-5° C stirring at 0°-5° C After stirring under these conditions for 30 mins the mixture stirred for a further 1 hour The product was isolated by filtration washed with water pulled dry Dried at 50° C.

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 30.0 g. of 100% sulfuric acid is added N-benzyl-N-ethylaniline (30.0 g.) dropwise below about 50° C. To this solution is added, at 50°-60° C., 60% oleum (30.0 g.) with good stirring. The mixture is stirred and heated at about 60° C. for three hours and then drowned into 200 ml. of water. The free sulfonic acid (Coupler 1) which is mostly the meta isomer with a small amount of para, precipitates on standing and is collected by filtration, washed with water, and dried. N-Benzylanilines containing groups such as alkyl, alkoxy, and halogen in the ortho, meta, or para positions of the benzyl group may also be sulfonated by this procedure. The exact location of the sulfonic acid group in these cases is often not known and mixtures usually are produced. To this solution is added, at 50°-60° C. precipitates on standing is collected by filtration washed with water dried mixtures usually are produced

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a 30.0 g. of 100% sulfuric acid is added N-benzyl-N-ethylaniline (30.0 g.) dropwise below about 50° C. To this solution is added, at 50°-60° C., 60% oleum (30.0 g.) with good stirring. The mixture is stirred and heated at about 60° C. for three hours and then drowned into 200 ml. of water. The free sulfonic acid which is mostly the meta isomer with a small amount of para, precipitates on standing and is collected by filtration, washed with water, and dried. N-Benzylines containing groups such as alkyl, alkoxy, and halogen in the ortho, meta, or para positions of the benzyl group may also be sulfonated by this procedure. The exact location of the sulfonic acid group in these cases is often not known and mixtures usually are produced. To this solution is added, at 50°-60° C. precipitates on standing is collected by filtration washed with water dried N-Benzylines containing groups such as alkyl, alkoxy, and halogen in the ortho, meta, or para positions of the benzyl group mixtures usually are produced

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To 30.0 g. of 100% sulfuric acid is added N-benzyl-N-ethylaniline (30.0 g) dropwise below about 50° C. To this solution is added, at 50°-60° C., 60% oleum (30.0 g.) with good stirring. The mixture is stirred and heated at about 60° C. for three hours and then drowned into 200 ml of water. The free sulfonic acid which is mostly the meta isomer with a small amount of para, precipitates on standing and is collected by filtration, washed with water, and dried. N-Benzylanilines containing groups such as alkyl, alkoxy, and halogen in the ortho, meta, or para positions of the benzyl group may be sulfonated by this procedure. The exact location of the sulfonic acid group in these cases is often not known and mixtures usually are produced. To this solution is added, at 50°-60° C. precipitates on standing is collected by filtration washed with water dried mixtures usually are produced

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

Procedure: N-benzyl-N-phenyl-N-ethylamine (2.25 g, 0.0107 mol) was dissolved in anhydrous dichloromethane (80 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (4.36 g, 0.0107 mol) was added in 6 equal portions over a 20 min. period. Stirring was continued at ambient temperature for 20 hours; the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-ethylamine (2.38 g, 0.0082 mol) as a colorless oil. the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

Procedure: N-benzyl-N-phenyl-N-ethylamine (2.25 g, 0.0107 mol) was dissolved in anhydrous dichloromethane (80 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (4.36 g, 0.0107 mol) was added in 6 equal portions over a 20 min. period. Stirring was continued at ambient temperature for 20 hours; the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-ethylamine (2.38 g, 0.0082 mol) as a colorless oil. the organic phase was successively washed with 0.5N solution of sodium hydroxide in water (50 mL), 1N solution of sodium hydroxide in water (50 mL), water (70 mL) and brine (75 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica