3-chloro-2-N-methylbenzene-1,2-diamine

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

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

Procédure: 2-Chloro-N-methyl-6-nitrobenzenamine (1.5 g, 8.0 mmol) was dissolved in a mixture of EtOH (15 mL) and H2O (15 ml). Iron powder (2.2 g, 40 mmol) was added followed by Acetic acid (0.55 mL, 9.6 mmol). The reaction was monitored by TLC, after 30 min, the reaction was completed. The reaction mixture was filtered over celite pad and the filtrate was neutralized by saturated NaHCO3 (10 mL). The product was extracted by EtOAc (2*10 mL), the organic layer was washed with brine (10 mL), dried over MgSO4 and concentrated to dryness to afford 920 mg of 6-chloro-N1-methylbenzene-1,2-diamine (Yield: 73%) as dark brown oil. The reaction mixture was filtered over celite pad The product was extracted by EtOAc (2*10 mL) the organic layer was washed with brine (10 mL) dried over MgSO4 concentrated to dryness

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

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

Procédure: 2-Chloro-N-methyl-6-nitrobenzenamine (1.5 g, 8.0 mmol) was dissolved in a mixture of EtOH (15 mL) and H2O (15 ml). Iron powder (2.2 g, 40 mmol) was added followed by Acetic acid (0.55 mL, 9.6 mmol). The reaction was monitored by TLC, after 30 min, the reaction was completed. The reaction mixture was filtered over celite pad and the filtrate was neutralized by saturated NaHCO3 (10 mL). The product was extracted by EtOAc (2*10 mL), the organic layer was washed with brine (10 mL), dried over MgSO4 and concentrated to dryness to afford 920 mg of 6-chloro-N1-methylbenzene-1,2-diamine (Yield: 73%) as dark brown oil. The reaction mixture was filtered over celite pad The product was extracted by EtOAc (2*10 mL) the organic layer was washed with brine (10 mL) dried over MgSO4 concentrated to dryness

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

Procédure: 2-Chloro-N-methyl-6-nitrobenzenamine (1.5 g, 8.0 mmol) was dissolved in a mixture of EtOH (15 mL) and H2O (15 ml). Iron powder (2.2 g, 40 mmol) was added followed by Acetic acid (0.55 mL, 9.6 mmol). The reaction was monitored by TLC, after 30 min, the reaction was completed. The reaction mixture was filtered over celite pad and the filtrate was neutralized by saturated NaHCO3 (10 mL). The product was extracted by EtOAc (2*10 mL), the organic layer was washed with brine (10 mL), dried over MgSO4 and concentrated to dryness to afford 920 mg of 6-chloro-N1-methylbenzene-1,2-diamine (Yield: 73%) as dark brown oil. The reaction mixture was filtered over celite pad The product was extracted by EtOAc (2*10 mL) the organic layer was washed with brine (10 mL) dried over MgSO4 concentrated to dryness

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt:70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt:70/30 as eluent)

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

Procédure: 2-Chloro-N-methyl-6-nitrobenzenamine (1.5 g, 8.0 mmol) was dissolved in a mixture of EtOH (15 mL) and H2O (15 ml). Iron powder (2.2 g, 40 mmol) was added followed by Acetic acid (0.55 mL, 9.6 mmol). The reaction was monitored by TLC, after 30 min, the reaction was completed. The reaction mixture was filtered over celite pad and the filtrate was neutralized by saturated NaHCO3 (10 mL). The product was extracted by EtOAc (2*10 mL), the organic layer was washed with brine (10 mL), dried over MgSO4 and concentrated to dryness to afford 920 mg of 6-chloro-N1-methylbenzene-1,2-diamine (Yield: 73%) as dark brown oil. The reaction mixture was filtered over celite pad The product was extracted by EtOAc (2*10 mL) the organic layer was washed with brine (10 mL) dried over MgSO4 concentrated to dryness

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procédure: 6-Chloro-N1-methylbenzene-1,2-diamine (800 mg, 5 mmol) and 2-chloroacetic acid (700 mg, 8 mmol) were dissolved in HCl 2N (5.7 mL). The resulting solution was heated at 90° C. for 18 h. The aqueous layer was neutralized by 3N NaOH. After extraction with EtOAc (3*10 mL), the organic layer was washed with water (10 mL), brine (10 mL) and dried over Na2SO4. The solvent was removed under reduced pressure and the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent) to afford 478 mg of 7-chloro-2-(chloromethyl)-1-methyl-1H-benzo[d]imidazole (Yield: 40%) as a pink solid After extraction with EtOAc (3*10 mL) the organic layer was washed with water (10 mL), brine (10 mL) dried over Na2SO4 The solvent was removed under reduced pressure the resulting crude product was purified over silicagel chromatography (prepacked 25 g silicagel column, Cyclohexane/AcOEt: 70/30 as eluent)