Sodium Nitrite → HCID 178497314, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 2-(3,4-diaminophenyl)-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate (635 mg, crude) in HCl (1N, 150 mL) was added sodium nitrite (132 mg, 1.91 mmol) in water (1 mL) at 0° C. After stirring for 15 min at 0° C., the reaction mixture was extracted with dichloromethane (3×50 mL), dried over anhydrous sodium sulfate and concentrated under vacuum to give a residue, which was purified via silica gel chromatography (3% methanol in dichloromethane) to afford methyl 2-(1H-benzo[d][1,2,3]triazol-5-yl)-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate as a yellow solid (140 mg).

Provenance & Evidence