Oxalic acid dihydrate → HCID 178481969, compound

Participants

Reaction Steps

A solution of 4,5-diamino-1-methylbenzotriazole (1.2 g, 7.4 mmol) and oxalic acid dihydrate (1.2 g, 9.6 mmol) in 40 ml of 4M hydrochloric acid was refluxed on an oil bath for 2 h and allowed to cool. The resulting precipitate was collected by filtration and washed with water and ethanol to give 1.46 g (91%) of the title compound; m.p.>300° C.; IR (KBr): 1700 cm-1 ; 1H-NMR (DMSO-d6) 4.32 (s, 3H, CH3)), 7.33 (d, J=9 Hz), 1H, ArH), 7.55 (d, J=g Hz, 1H, ArH), 12.03 (broad s, 1H, OH), 12.67 (broad s, 1H, OH).

Provenance & Evidence