2-溴-4-甲氧基苯甲醛

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-bromo-4-fluorobenzaldehyde (50 g, 246 mmol), in MeOH (500 mL) in a 15° C. water bath was added a 25% solution of NaOMe/MeOH (88 mL). The mixture was stirred at r.t. for 1 hour followed by 2 hours at reflux. The solid was filtered and the filtrate was concentrated to dryness to give a second crop of solid. Both crops were taken up in CH2Cl2/H2O. After washing with H2O, the organic phase was dried (MgSO4), filtered, and evaporated to give an off-white solid (52.2 g). followed by 2 hours at reflux The solid was filtered the filtrate was concentrated to dryness to give a second crop of solid After washing with H2O the organic phase was dried (MgSO4) filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The procedure is in accordance with the process of Preparation 1, replacing the ethyl 2-methyl-1H-pyrrole-3-carboxylate used in Step A by methyl 2-methyl-1H-pyrrole-3-carboxylate and also the 2-bromo-4-chlorobenzaldehyde used in Step B by 2-bromo-4-methoxybenzaldehyde. The procedure is in accordance with the process of Preparation 1

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The procedure is in accordance with the process of Preparation 1, replacing the ethyl 2-methyl-1H-pyrrole-3-carboxylate used in Step A by methyl 2-methyl-1H-pyrrole-3-carboxylate and also the 2-bromo-4-chlorobenzaldehyde used in Step B by 2-bromo-4-methoxybenzaldehyde. The procedure is in accordance with the process of Preparation 1

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of 2-bromo-4-fluorobenzaldehyde (50 g, 246 mmol), in MeOH (500 mL) in a 15° C. water bath was added a 25% solution of NaOMe/MeOH (88 mL). The mixture was stirred at r.t. for 1 hour followed by 2 hours at reflux. The solid was filtered and the filtrate was concentrated to dryness to give a second crop of solid. Both crops were taken up in CH2Cl2/H2O. After washing with H2O, the organic phase was dried (MgSO4), filtered, and evaporated to give an off-white solid (52.2 g). followed by 2 hours at reflux The solid was filtered the filtrate was concentrated to dryness to give a second crop of solid After washing with H2O the organic phase was dried (MgSO4) filtered evaporated

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: The procedure is in accordance with the process of Preparation 1, replacing the ethyl 2-methyl-1H-pyrrole-3-carboxylate used in Step A by methyl 2-methyl-1H-pyrrole-3-carboxylate and also the 2-bromo-4-chlorobenzaldehyde used in Step B by 2-bromo-4-methoxybenzaldehyde. The procedure is in accordance with the process of Preparation 1