2-amino-5-bromo-3-fluorobenzaldehyde

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244. found: 243, 245 [M+H]+. The reaction mixture was cooled to RT the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244. found: 243, 245 [M+H]+. The reaction mixture was cooled to RT the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at RT overnight. TLC showed the starting material consumed completely. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. consumed completely The solid was filtered off the filtrate was concentrated

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 hours. The reaction mixture was cooled to room temperature, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244, found: 243, 245 [M+H]+. The reaction mixture was cooled to room temperature the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at room temperature overnight. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. The solid was filtered off the filtrate was concentrated

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 hours. The reaction mixture was cooled to room temperature, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244, found: 243, 245 [M+H]+. The reaction mixture was cooled to room temperature the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at room temperature overnight. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. The solid was filtered off the filtrate was concentrated

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244. found: 243, 245 [M+H]+. The reaction mixture was cooled to RT the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at RT overnight. TLC showed the starting material consumed completely. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. consumed completely The solid was filtered off the filtrate was concentrated

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A stirred mixture of 2-amino-5-bromo-3-fluorobenzaldehyde (2.17 g, 10 mmol) and urea (9 g, 150 mmol) was heated at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT, and the resulting precipitate was filtered and washed with water (500 mL*3). The moisture trapped was completely removed by the co-evaporation with toluene three times. The title compound (2 g, 83%) was obtained as a yellow solid. MS (ES+) C8H4BrFN2O requires: 242, 244. Found: 243, 245 [M+H]+. The reaction mixture was cooled to RT the resulting precipitate was filtered washed with water (500 mL*3) The moisture trapped was completely removed by the co-evaporation with toluene three times

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at RT overnight. TLC showed the starting material consumed completely. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. consumed completely The solid was filtered off the filtrate was concentrated

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

Procedure: A mixture of (2-amino-5-bromo-3-fluorophenyl)methanol (13 g, 59.4 mmol) and manganese oxide (31 g, 356.4 mmol) in dichloromethane (400 mL) was stirred at RT overnight. TLC showed the starting material consumed completely. The solid was filtered off, and the filtrate was concentrated to give the title compound (11 g, 85%) as a light yellow solid, which was directly used in the next step without further purification. consumed completely The solid was filtered off the filtrate was concentrated