4-[2-(dimethylamino)ethylsulfanyl]aniline

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

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

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

Procedure: (4E)-6-Bromo-4-(methoxymethylene)isoquinoline-1,3(2H,4H)-dione (0.21 g, 0.76 mmol) and 4-(2-dimethylamino-ethylsulfanyl)-phenylamine (0.15 g, 0.76 mmol) were stirred in N,N-dimethylformamide (5 mL) and triethylamine (0.3 mL) at 60-70° C. for 5 minutes and then at room temperature for 10 minutes. The reaction mixture is quenched by the addition of water. The solid material is then collected, washed with diethyl ether, water, and methanol, and then dried under vacuum to give (4Z)-6-bromo-4-{[(4-{[2-(dimethylamino)ethyl]thio}phenyl)amino]methylene}isoquinoline-1,3(2H,4H)-dione (0.22 mg, 65%) as a golden powder. The reaction mixture is quenched by the addition of water The solid material is then collected washed with diethyl ether, water, and methanol dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of N,N-dimethyl-N-{2-[(4-nitrophenyl)thio]ethyl}amine (0.58 g, 3.0 mmol) in ethanol (45 mL), tetrahydrofuran (23 mL), and saturated aqueous ammonium chloride solution is added iron powder (1.1 g, 6.4 mmol). The mixture is heated in a 100° C. oil bath for one hour. While still hot, the reaction mixture is filtered through a pad of diatomaceous earth. The concentrated filtrate is partitioned between ethyl acetate and saturated aqueous sodium chloride solution. The organic phase is dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude material is purified by reverse-phase high performance liquid chromatography to give 4-(2-dimethylamino-ethylsulfanyl)-phenylamine. While still hot, the reaction mixture is filtered through a pad of diatomaceous earth The concentrated filtrate is partitioned between ethyl acetate and saturated aqueous sodium chloride solution The organic phase is dried over anhydrous sodium sulfate concentrated under reduced pressure The crude material is purified by reverse-phase high performance liquid chromatography

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

Procedure: (4E)-6-Bromo-4-(methoxymethylene)isoquinoline-1,3(2H,4H)-dione (0.21 g, 0.76 mmol) and 4-(2-dimethylamino-ethylsulfanyl)-phenylamine (0.15 g, 0.76 mmol) were stirred in N,N-dimethylformamide (5 mL) and triethylamine (0.3 mL) at 60-70° C. for 5 minutes and then at room temperature for 10 minutes. The reaction mixture is quenched by the addition of water. The solid material is then collected, washed with diethyl ether, water, and methanol, and then dried under vacuum to give (4Z)-6-bromo-4-{[(4-{[2-(dimethylamino)ethyl]thio}phenyl)amino]methylene}isoquinoline-1,3(2H,4H)-dione (0.22 mg, 65%) as a golden powder. The reaction mixture is quenched by the addition of water The solid material is then collected washed with diethyl ether, water, and methanol dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of N,N-dimethyl-N-{2-[(4-nitrophenyl)thio]ethyl}amine (0.58 g, 3.0 mmol) in ethanol (45 mL), tetrahydrofuran (23 mL), and saturated aqueous ammonium chloride solution is added iron powder (1.1 g, 6.4 mmol). The mixture is heated in a 100° C. oil bath for one hour. While still hot, the reaction mixture is filtered through a pad of diatomaceous earth. The concentrated filtrate is partitioned between ethyl acetate and saturated aqueous sodium chloride solution. The organic phase is dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude material is purified by reverse-phase high performance liquid chromatography to give 4-(2-dimethylamino-ethylsulfanyl)-phenylamine. While still hot, the reaction mixture is filtered through a pad of diatomaceous earth The concentrated filtrate is partitioned between ethyl acetate and saturated aqueous sodium chloride solution The organic phase is dried over anhydrous sodium sulfate concentrated under reduced pressure The crude material is purified by reverse-phase high performance liquid chromatography