Methanol → 4-(5-Bromopyrrolo[1,2-b]pyridazin-4-yloxy)-3-fluoroaniline

Participants

Reaction Conditions

Reaction Steps

Methanol (1.2 mL), zinc powder (300 mg, 4.57=1) and ammonium chloride (130 mg, 2.47 mmol) were sequentially added to a solution of 5-bromo-4-(2-fluoro-4-nitrophenoxy)pyrrolo[1,2-b]pyridazine (67 mg, 0.19 mmol) in tetrahydrofuran (4.7 mL) and heated at 70° C. for 1.5 hours. Upon completion of the reaction, the resulting reaction mixture was cooled to room temperature and filtered by passing through a celite pad. The filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (1-6% ethyl acetate in dichloromethane) to give the target compound (57 mg, 0.178 mmol, 93% yield).

Provenance & Evidence