Dimethyl 2,2'-(1,3-dioxolane-2,2-diyl)diacetate → 2-(2-(2-Hydroxyethyl)-1,3-dioxolan-2-yl)ethan-1-ol
反応式
[O:1]1[CH2:5][CH2:4][O:3][C:2]1([CH2:11][C:12](OC)=[O:13])[CH2:6][C:7](OC)=[O:8].[H-].[H-].[H-].[H-].[Li+].[Al+3]>C1COCC1>[O:1]1[CH2:5][CH2:4][O:3][C:2]1([CH2:6][CH2:7][OH:8])[CH2:11][CH2:12][OH:13]参加物
4
実験手順
To a solution of 2.6 g (12 mmol) of dimethyl 2,2′-(1,3-dioxolane-2,2-diyl)diacetate in 100 mL of dry THF was added 1.4 g (36 mmol) of LAH at 0° C. The reaction mixture was then refluxed for 1 h, was quenched with 15% NaOH aqueous solution (3 mL) and water (3 mL). The mixture was stirred overnight, filtered through celite. The residue was washed twice with THF (100 mL×2). The combined organic phase was evaporated. Chromatography on silica gel afforded 1.3 g (8.0 mmol, yield: 66%) of 2,2′-(1,3-dioxolane-2,2-diyl)diethanol: MS (m/e): 163 (M+1)+.
後処理
- temperatureThe reaction mixture was then refluxed for 1 h
- customwas quenched with 15% NaOH aqueous solution (3 mL) and water (3 mL)
- filtrationfiltered through celite
- washThe residue was washed twice with THF (100 mL×2)
- customThe combined organic phase was evaporated
出典と根拠
- ORDレコード
- ord-2859ca561f724b74aa6217654c49820c
- 出典データセット
- uspto-grants-2011_07
- 特許番号
- US07985730B2
反応ノート
読み込み中…