反应详情

A colorless, homogeneous solution of 6-methylisobenzofuran-1(3H)-one (0.95 g, 6.41 mmol), KOH (0.576 g, 10.26 mmol) in methanol (20.52 mL) and water (5.13 mL) was refluxed. After two hr, the reaction was cooled to room temperature, concentrated in vacuo, and acidified with 1 M aqueous KHSO4 to pH ˜3. The mixture was extracted with EtOAc (4×50 mL). The combined extract was dried over MgSO4 and concentrated in vacuo to give the desired product (0.632 g, 3.81 mmol, 59.4% yield) as a white solid.

1. concentrationconcentrated in vacuo
2. extractionThe mixture was extracted with EtOAc (4×50 mL)
3. extractionThe combined extract
4. dry with materialwas dried over MgSO4
5. concentrationconcentrated in vacuo