反应详情

Cool a solution of (4-Benzyloxy-2,6-dimethyl-phenyl)-methanol (5.70 g, 24 mmol) in THF (100 mL) to 0° C. Treat the solution with Phosphorous tribromide (0.9 mL, 9.4 mmol) and stir the reaction for 2 hr at 0° C. Quench the reaction with water and extract with Et2O. Wash the organic with brine, dry over MgSO4, and filter. Remove the solvent to afford 7.1 g (99%) of product. 1H NMR (d6-CDCl3) δ 7.31-7.43 (m, 5H), 6.65 (s, 2H), 5.01 (s, 2H), 4.56 (s, 2H), 2.38 (s, 6H).

1. customthe reaction for 2 hr at 0° C
2. customQuench
3. customthe reaction with water
4. extractionextract with Et2O
5. washWash the organic with brine
6. dry with materialdry over MgSO4
7. filtrationfilter
8. customRemove the solvent