Oxalic Acid → 1-(4-Chloroanilino)-4-(4-pyridylmethyl)phthalazine oxalate

Participants

Reaction Steps

A solution of 1.35 g (15 mmol) oxalic acid in 35 ml ethanol is added to a hot solution of 5.0 g (14.4 mmol) 1-(4-chloroanilino)-4-(4-pyridylmethyl)phthalazine in 150 ml ethanol. On stirring, crystals precipitate out. Cooling, filtering, washing with ethanol, and drying yield the title compound: Anal. calc. (C22H17N4ClO4) C 60.49%, H 3.92%, N 12.83%; found C 60.69%, H 4.05%, N 12.97%.

Provenance & Evidence