Bromine → Ethyl 2-(3-bromo-5-chloro-4-hydroxyphenyl)acetate

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of compound ethyl 2-(3-chloro-4-hydroxyphenyl)acetate (11 g, 51 mmol) in 200 ml of CCl4, was slowly added bromine (8.22 g, 51 mmol) as a solution CCl4 (100 ml) at 0° C. over a period of 30 min. The reaction mixture was stirred for a further 30 min at 0° C. Upon which the reaction mixture was poured onto crushed ice and extracted with DCM (2×100 mL). The combined organic layers were washed with water followed by 10% sodium bisulfite solution, dried over Na2SO4 filtered and evaporated under reduced pressure to give ethyl 2-(3-bromo-5-chloro-4-hydroxyphenyl)acetate (12.2 g) as a white solid in 80% yield. 1HNMR (CDCl3): 7.37 (s, 1H); 7.27 (s, 1H); 5.68 (bs, 1H); 4.16 (q, 2H); 3.48 (s, 2H); 1.29 (t, 3H).

Provenance & Evidence