Hydroxyamine hydrochloride → (E)-5-Bromo-3,4-dihydronaphthalen-1(2H)-one oxime

Participants

Reaction Steps

To a solution of 5-bromo-3,4-dihydronaphthalen-1(2H)-one (1.0 g, 4.44 mmol) in pyridine (15 mL) was added hydroxylamine hydrochloride (0.617 g, 8.89 mmol). The reaction mixture was stirred at room temperature for 1 h and then concentrated. The resulting residue was treated with water (60 mL) and extracted with ethyl acetate (60 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated to afford the title compound (1.41 g, 99% yield) as white solid. LCMS, [M+Na]+=240.0.

Provenance & Evidence