Tetrabutylammonium Fluoride → 2-[3-(4,5-dihydro-4(R)-phenyl-oxazol-2-yl)phenoxy]ethan-1-ol
反応式
[Si]([O:8][CH2:9][CH2:10][O:11][C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([C:18]2[O:19][CH2:20][C@@H:21]([C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)[N:22]=2)[CH:13]=1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1>[C:23]1([C@@H:21]2[CH2:20][O:19][C:18]([C:14]3[CH:13]=[C:12]([CH:17]=[CH:16][CH:15]=3)[O:11][CH2:10][CH2:9][OH:8])=[N:22]2)[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1参加物
4
実験手順
To a solution of 1-(tert-butyldimethylsilyloxy)-2-[3-(4,5-dihydro-4(R)-phenyloxazol-2-yl)phenoxy]ethane (4.4 g, 11 mmol) in THF (35 ml) was added dropwise tetrabutylammonium fluoride (1M in THF, 14 ml). The reaction mixture was stirred at room temperature for 45 min., solvent removed by evaporation and the resulting residue was purified by column chromatography on silica gel eluting with ethyl acetate/n-hexane (=1:2) to afford 2-[3-(4,5-dihydro-4(R)-phenyl-oxazol-2-yl)phenoxy]ethan-1-ol (2.8 g, 91%) as a colorless oil.