Sodium Hydroxide → HCID 50991021, compound

Participants

Reaction Steps

Into a 50-mL round-bottom flask, was placed a solution of methyl 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylate (110 mg, 0.32 mmol, 1.00 equiv) in methanol (20 mL). Then a solution of sodium hydroxide (63.4 mg, 1.58 mmol, 5.00 equiv) in water (2.5 mL) was added dropwise with stirring. The resulting solution was stirred for 8 h at 50° C. in an oil bath. The resulting mixture was concentrated under vacuum and diluted with 10 ml of water. The pH value of the aqueous solution was adjusted to 3-4 with 1N hydrogen chloride. The resulting solid was collected by filtration and washed with hexane. This resulted in 40 mg (38%) of 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid.

Provenance & Evidence