反应详情

To a solution of methyl 5-bromo-2-methoxy-3-methyl-benzoate (2.6 g, 10.0 mmol, 1.0 eq) in THF (20 mL) was added an aqueous solution of NaOH (2M, 20 mL, 40 mmol, 4.0 eq). The mixture was stirred at room temperature for 5 h. Water was added and the aqueous layer was acidified to pH 9 by addition of 1M HCl. The THF was removed in vacuo and the aqueous layer was further acidified to pH 4-5 with 1M HCl. The solid that precipitated from the reaction was collected by filtration and dried to give the title compound as a white solid (1.8 g, 73%).

1. customThe THF was removed in vacuo
2. customThe solid that precipitated from the reaction
3. filtrationwas collected by filtration
4. customdried