反应详情

温度

-78 °C

Add a solution of t-BuLi (5.8 mL, 8.68 mmol) via syringe to a solution of 3-bromo-phenol (752 mg, 4.34 mmol) in THF (60 mL) at −78° C. under N2. After being stirred at −78° C. for 1 hour, add a solution of 3-dimethylaminomethyl-bicyclo[4.1.0]heptan-2-one (300 mg, 2.17 mmol) in THF (2 mL) to the reaction mixture and stir the reaction mixture at −78° C. for additional 2 hours. Quench the reaction mixture with saturated NH4Cl solution (30 mL). Extract the aqueous resultant mixture with EtOAc (60 mL×3). The combined organic layers are washed with brine (30 mL), dried over Na2SO4, filtered, and concentrated under vacuum. Purify the residue by Preparative HPLC to give 3-dimethylaminomethyl-2-(3-hydroxy-phenyl)-bicyclo[4.1.0]heptan-2-ol as white solid (73 mg, yield: 12.9%). MS (m/z): 262 (M+1).

1. stirringstir the reaction mixture at −78° C. for additional 2 hours
2. customQuench the reaction mixture with saturated NH4Cl solution (30 mL)
3. extractionExtract the aqueous resultant mixture with EtOAc (60 mL×3)
4. washThe combined organic layers are washed with brine (30 mL)
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated under vacuum
8. customPurify the residue by Preparative HPLC