反应详情

温度

60 °C

To a round-bottom flask, was added a solution of methyl 4-cyclobutyl-2-ethyl-5-iodobenzoate (compound 181.4, 10.3 g, 30.0 mmol, 1.00 equiv) in methanol (100 mL). A solution of sodium hydroxide (3.60 g, 3.00 equiv) in water (10 mL) was added dropwise to the stirred reaction mixture. The resulting mixture was stirred for 2 h at 60° C. After cooling to ambient temperature, the volatiles were removed under reduced pressure. The pH of the remaining aqueous mixture was adjusted to ˜4 using HCl (aq., 1 M). The resulting precipitate was collected by filtration and dried to yield 9.00 g (91%) of 4-cyclobutyl-2-ethyl-5-iodobenzoic acid as a white solid.

1. temperatureAfter cooling to ambient temperature
2. customthe volatiles were removed under reduced pressure
3. filtrationThe resulting precipitate was collected by filtration
4. customdried