2-amino-5-bromo-4-methoxybenzaldehyde

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: To a stirred solution of 2-amino-4-methoxybenzaldehyde (6 g, 39.7 mmol) in dichloromethane (100 mL) was added N-bromosuccinimide (7 g, 39.7 mmol). LCMS monitored the reaction until the starting material consumed completely. The reaction mixture was diluted with dichloromethane and water. The separated organic layer was dried sodium sulfate, filtered and concentrated to give the title compound (5 g, 56%) as a yellow solid. MS (ES+) C8H8BrNO2 requires: 229, 231. found: 230, 232 [M+H]+. the reaction until the starting material consumed completely The reaction mixture was diluted with dichloromethane and water filtered concentrated

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 hours. The reaction mixture was cooled to room temperature and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256, found: 255, 257 [M+H]+. The reaction mixture was cooled to room temperature washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: To a stirred solution of 2-amino-4-methoxybenzaldehyde (6 g, 39.7 mmol) in dichloromethane (100 mL) was added N-bromosuccinimide (7 g, 39.7 mmol). The reaction mixture was diluted with dichloromethane and water. The separated organic layer was dried sodium sulfate, filtered and concentrated to give the title compound (5 g, 56%) as a yellow solid. MS (ES+) C8H8BrNO2 requires: 229, 231, found: 230, 232 [M+H]+. filtered concentrated

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 hours. The reaction mixture was cooled to room temperature and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256, found: 255, 257 [M+H]+. The reaction mixture was cooled to room temperature washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: To a stirred solution of 2-amino-4-methoxybenzaldehyde (6 g, 39.7 mmol) in dichloromethane (100 mL) was added N-bromosuccinimide (7 g, 39.7 mmol). The reaction mixture was diluted with dichloromethane and water. The separated organic layer was dried sodium sulfate, filtered and concentrated to give the title compound (5 g, 56%) as a yellow solid. MS (ES+) C8H8BrNO2 requires: 229, 231, found: 230, 232 [M+H]+. filtered concentrated

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. Found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: A mixture of 2-amino-5-bromo-4-methoxybenzaldehyde (3 g, 13.1 mmol) and urea (12 g, 196.5 mmol) was stirred at 180° C. for 2 h. LCMS showed the reaction was completed. The reaction mixture was cooled to RT and washed with water (3×100 mL). The precipitate was collected and dried to give the title compound (3 g, crude) as a yellow solid. MS (ES+) C8H7BrN2O2 requires: 254, 256. Found: 255, 257 [M+H]+. The reaction mixture was cooled to RT washed with water (3×100 mL) The precipitate was collected dried

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

Procedure: To a stirred solution of 2-amino-4-methoxybenzaldehyde (6 g, 39.7 mmol) in dichloromethane (100 mL) was added N-bromosuccinimide (7 g, 39.7 mmol). LCMS monitored the reaction until the starting material consumed completely. The reaction mixture was diluted with dichloromethane and water. The separated organic layer was dried sodium sulfate, filtered and concentrated to give the title compound (5 g, 56%) as a yellow solid. MS (ES+) C8H8BrNO2 requires: 229, 231. Found: 230, 232 [M+H]+. the reaction until the starting material consumed completely The reaction mixture was diluted with dichloromethane and water filtered concentrated