反应详情

温度

50 °C

Lithium hydroxide (2 g; 84.6 mmol; 5 eq.) was added to a solution of methyl 3-methyl-4-morpholin-4-ylbenzoate (4 g; 17 mmol; 1 eq.) in THF (100 mL) and water (5 mL) and the reaction mixture was stirred at 50° C. for 12 hours. The solvent was removed in vacuo, the residue diluted with water and the aqueous layer washed with DCM (2×50 mL). The aqueous layer was acidified to pH 4 with conc. HCl and extracted with ethyl acetate (2×100 mL). The combined organic layer was washed with brine, dried over sodium sulfate and concentrated in vacuo to afford the title compound (3.6 g, 97%) as a yellow solid.

1. customThe solvent was removed in vacuo
2. additionthe residue diluted with water
3. washthe aqueous layer washed with DCM (2×50 mL)
4. extractionextracted with ethyl acetate (2×100 mL)
5. washThe combined organic layer was washed with brine
6. dry with materialdried over sodium sulfate
7. concentrationconcentrated in vacuo