Oxalic acid dihydrate → 5,6-Dimethylquinoxaline-2,3-diol

Participants

Reaction Conditions

Reaction Steps

To a solution of 3,4-dimethyl-benzene-1,2-diamine (67.5 g, 496 mmol) in 5N HCl (250 mL) was added oxalic acid dihydrate (69.3 g, 550 mmol). The reaction mixture was heated to 100° C. under stirring. The reaction mixture was stirred for 8 hours and cooled to room temperature. The dark precipitate was filtered, washed, and dried.

Provenance & Evidence