Diethylamine → HCID 178463873, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 3-chloro-2-hydroxyquinoxaline-6-carboxylate (450 mg, crude) in DMSO (5 mL) was added diethylamine (550 mg, 7.52 mmol), DIEA (492 mg, 3.81 mmol). After stirring for 2 h at 70° C., the resulting solution was diluted with water (50 mL), extracted with ethyl acetate (4×20 mL), dried over anhydrous magnesium sulfate and concentrated under reduced pressure to afford a residue, which was purified by a silica gel column with 5% ethyl acetate in petroleum ether to afford methyl 3-(diethylamino)-2-hydroxyquinoxaline-6-carboxylate as a yellow solid (160 mg).

Provenance & Evidence