戻る
化工社化工社 化学情報印刷レポート · 研究参考用
HRID 39229作成日:2026年10月23日

Ethyl Acetate → (S)-2-(5-Bromo-2-fluoro-phenyl)-propane-1,2-diol

https://huagongshe.com/ja/reaction/39229

反応式

関与物質

役割名称HCID仕込み量
反応物Ethyl AcetateHCID 8857—
反応物Potassium CarbonateHCID 11430—
反応物1-((1R)-((2R,4R,5S)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)-4-((1R)-((2R,4S,5R)-5-ethylquinuclidin-2-yl)(6-methoxyquinolin-4-yl)methoxy)phthalazineHCID 51003674—
反応物4-Bromo-1-fluoro-2-isopropenyl-benzeneHCID 58562922—
溶媒2-Methylpropan-2-ol--water (1/1)HCID 71401949—
生成物(S)-2-(5-Bromo-2-fluoro-phenyl)-propane-1,2-diolHCID 66665442—

反応条件

温度0 °C

反応手順

To a suspension of K3Fe(CN)6 (186 g, 561 mmol), K2CO3 (78 g, 561 mmol), (DHQ)2-PHAL (1.311 g, 1.674 mmol) and K2OsO2(OH)4 (0.378 g, 1 mmol) in t-BuOH—H2O 1:1 (1600 ml) was added 4-bromo-1-fluoro-2-isopropenyl-benzene (36 g, 167 mmol) at 0° C. and the reaction mixture was stirred for 14 h at 0° C. After careful addition of Na2S2O5 (100 g) at 0-5° C. the reaction mixture was stirred for 1 h before extraction with EtOAc. Combined extracts were washed with 5% NaS3O3 solution and brine, dried over MgSO4, filtered and concentrated to give the title compound as a white solid: TLC (hexane-EtOAc 1:1): Rf=0.46; UPLC RtH5=0.767 min; ESIMS: 266, 268 [(M+NH4)+]; 1H NMR (360 MHz, CDCl3): δ 7.71 (dd, 1H), 7.27 (m, 1H), 6.83 (dd, 1H), 3.85 (d, 1H), 3.62 (d, 1H), 2.94 (s, 3H), 2.01 (s, 1H), 1.43 (s, 3H).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US08524897B2
出典データセットuspto-grants-2013_09
ORD IDord-f6f56923d2774a2ea89a8c7acb657ab6
出典メモuspto-grants-2013_09