反应详情

To a solution of benzyl alcohol (221 mg, 2.05 mmol) in DMA (1.5 ml) was added 60% sodium hydride (82 mg, 2.05 mmol). The mixture was stirred for 1 hour at ambient temperature. A solution of 1,2-difluoro-3-(2,2-dimethoxypropyl)-4-nitrobenzene (534 mg, 2.05 mmol) in DMA (1.5 ml) was added and the mixture was stirred for 3 hours at ambient temperature. The mixture was diluted with 1N hydrochloric acid (10 ml) and extracted with ethyl acetate. The organic layer was evaporated and the residue was dissolved in THF (2 ml) and 6N hydrochloric acid (0.3 ml) was added. The mixture was stirred for 1 hour at ambient temperature and the solvents were removed under vacuum. The residue was partitioned between ethyl acetate and water. The organic layer was separated, washed with brine, dried (MgSO4) and evaporated. The solid was triturated with ether, filtered, washed with ether and dried under vacuum to give 3-acetylmethyl-1-benzyloxy-2-fluoro-4-nitrobenzene (350 mg, 56%).

1. stirringthe mixture was stirred for 3 hours at ambient temperature
2. extractionextracted with ethyl acetate
3. customThe organic layer was evaporated
4. dissolutionthe residue was dissolved in THF (2 ml)
5. addition6N hydrochloric acid (0.3 ml) was added
6. stirringThe mixture was stirred for 1 hour at ambient temperature
7. customthe solvents were removed under vacuum
8. customThe residue was partitioned between ethyl acetate and water
9. customThe organic layer was separated
10. washwashed with brine
11. dry with materialdried (MgSO4)
12. customevaporated
13. customThe solid was triturated with ether
14. filtrationfiltered
15. washwashed with ether
16. customdried under vacuum