Acetyl chloride → HCID 22063821, compound

Participants

Reaction Steps

1,3-Dimethyl-5-(5-methyl-3-phenyl-1H-pyrazol-4-yl)-1,3-dihydro-benzoimidazol-2-one is prepared according to the procedures outlined in Example 337. 1,3-Dimethyl-5-(5-methyl-3-phenyl-1H-pyrazol-4-yl)-1,3-dihydro-benzoimidazol-2-one (70.9 mg) is diluted with dichloromethane and is treated with triethylamine (0.1 mL) and acetyl chloride (0.05 mL). The mixture is allowed to stir for 20 minutes then is diluted with saturated sodium bicarbonate and extracted into dichloromethane. The organic layer is dried over sodium sulfate and concentrated to give 8 mg 5-(1-Acetyl-5-methyl-3-m-tolyl-1H-pyrazol-4-yl)-1,3-dimethyl-1,3-dihydro-benzoimidazol-2-one.

Provenance & Evidence