反応式
[Br:1][CH2:2][C:3]1[CH:4]=[C:5]([CH:8]=[CH:9][CH:10]=1)[CH:6]=O.[CH:11]1([O:16][C:17](=[O:22])[C:18]([CH3:21])([CH3:20])[NH2:19])[CH2:15][CH2:14][CH2:13][CH2:12]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(OCC)(=O)C>ClC(Cl)C>[Br:1][CH2:2][C:3]1[CH:4]=[C:5]([CH:8]=[CH:9][CH:10]=1)[CH2:6][NH:19][C:18]([CH3:21])([C:17]([O:16][CH:11]1[CH2:15][CH2:14][CH2:13][CH2:12]1)=[O:22])[CH3:20]参加物
6
実験手順
To a solution of 3-(bromomethyl)-benzaldehyde (0.503 g, 2.52 mmol) in dichloroethane (20 mL) was added α,α-dimethylglycine cyclopentyl ester (0.893 g, 5.2 mmol) and sodium triacetoxyborohydride (1.47 g, 6.9 mmol). The mixture was stirred at room temperature for 3 hours, then poured into ethyl acetate (200 mL) and washed with saturated ammonium chloride solution (3 times 50 mL). The organic fraction was dried (MgSO4), concentrated and purified by flash column chromatography (SiO2, 7:3 heptane:ethyl acetate) to yield the desired product (0.350 g, 39% yield). LC/MS: m/z 354/356 [M+H]+
後処理
- washwashed with saturated ammonium chloride solution (3 times 50 mL)
- dry with materialThe organic fraction was dried (MgSO4)
- concentrationconcentrated
- custompurified by flash column chromatography (SiO2, 7:3 heptane:ethyl acetate)
出典と根拠
- ORDレコード
- ord-12968c7296d848ee993da33f3dbf7c2e
- 出典データセット
- uspto-grants-2016_04
- 特許番号
- US09321718B2
関連ノート
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