反应详情

温度

50 °C

To a solution of 4-bromo-2-hydroxy-5-methylbenzoic acid (may be prepared as described in Description 13; 1.47 g, 6.36 mmol) in methanol (15 ml) was added thionyl chloride (0.93 ml, 12.72 mmol). The reaction was heated at 50° C. for 72 hours, then DCM (20 ml) and water (10 ml) were added. The organic layer was separated and washed with saturated NaHCO3 solution (10 ml), dried (MgSO4) and the solvent removed in vacuo to yield the title compound as a white solid. 1.2 g.

1. customThe organic layer was separated
2. washwashed with saturated NaHCO3 solution (10 ml)
3. dry with materialdried (MgSO4)
4. customthe solvent removed in vacuo