反应详情

(3-Bromo-5-chloro-phenyl)-acetic acid (14 g, 56 mmol) in EtOH (150 mL) was treated with sulfuric acid (2 mL) at 50° C. for 2 hours. The mixture was worked-up with CH2Cl2 and H2O, and the organic layer was concentrated to give the title compound.

1. concentrationthe organic layer was concentrated