Bromine → [4-Bromo-2-(2-bromoacetyl)phenoxy]acetic acid ethyl ester

Participants

Reaction Steps

To a cooled (0° C.) solution of (2-acetyl-4-bromophenoxy)acetic acid ethyl ester (2.5 g, 8.3 mmol) in CHCl3 (25 mL) was slowly added bromine (425 uL, 8.3 mmol). After completion the reaction mixture was allowed to stir at room temperature for 1 hour. The mixture was partitioned between CH2Cl2 and brine. The organic phase was washed with brine, dried (MgSO4) and concentrated in vacuo to give the title compound as a white solid (2.97 g, 7.8 mmol, 94%): 1H NMR (CDCl3): δ 1.35 (t, 3H), 4.32 (q, 2H), 4.75 (s, 2H), 4.76 (s, 2H), 6.77 (d, 1H), 7.60 (dd, 1H), 7.97 (s, 1H)

Provenance & Evidence