4-Aminophenol → HCID 135964711, compound

Participants

Reaction Steps

A mixture of 4-aminophenol (42 mg, 0.38 mmol), 1-chloro-4-(4-methylpiperazin-1-yl)phthalazine (100 mg, 0.381 mmol), and TFA (29 μA 0.38 mmol) was heated in 2-butanol (3 mL) in a sealed tube at 90° C. overnight. Next day LC/MS shows completion of reaction. The reaction was cooled and diluted with DCM. Aqueous sodium bicarbonate was added and the organic layer was collected. The aqueous layer was neutralized with 1N HCl and the product was extracted with DCM. The organic layers were combined, dried over sodium sulfate, and concentrated to afford 4-(4-(4-methylpiperazin-1-yl)phthalazin-1-ylamino)phenol as solid brown material. MS [M+H]=336.2. Calc'd for C19H21N5O: 335.4.

Provenance & Evidence