Hydrochloric Acid → HCID 66703851, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of (3-nitro-phenyl)-(3-o-tolyl-[1,2,4]triazolo[3,4-a]-phthalazin-6-yl)-amine (compound B10) (263 mg, 0.66 mmol) in a 2:1 mixture of glacial acetic acid and 37% hydrochloric acid (18 ml) is added tin chloride dihydrate (450 mg, 1.99 mmol). The mixture is stirred at 90° C. for 2 days. Upon cooling, the precipitate is filtered and the filtrate concentrated. Purification of residue by column chromatography (CH2Cl2/MeOH, 95:5) gives 205 mg of an off-white solid which is triturated with a 1:1 mixture of isopropanol and petroleum ether to yield 77 mg of the title compound as off-white needles.

Provenance & Evidence