反応式
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][CH2:10][OH:11])=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:19][C:20]([Si:23](Cl)([CH3:25])[CH3:24])([CH3:22])[CH3:21]>ClCCl.CN(C1C=CN=CC=1)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][CH2:9][CH2:10][O:11][Si:23]([C:20]([CH3:22])([CH3:21])[CH3:19])([CH3:25])[CH3:24])=[CH:6][CH:7]=1参加物
6
実験手順
To a solution of the product of step (i) (32.25 g, 0.15 mol) in anhydrous dichloromethane (400 mL) was added triethylamine (45 g, 0.45 mol), DMAP (915 mg, 7.5 mmol) and TBSCl (33 g, 0.215 mol) sequentially. The resulting solution was stirred overnight. The reaction mixture was extracted with dichloromethane and washed with water (×3). The combined organic layer was dried over anhydrous MgSO4, filtered and concentrated in vacuo. The crude product was purified by column chromatography with PE to afford the subtitle compound (ii) as a pale brown oil (40 g).
後処理
- extractionThe reaction mixture was extracted with dichloromethane
- washwashed with water (×3)
- dry with materialThe combined organic layer was dried over anhydrous MgSO4
- filtrationfiltered
- concentrationconcentrated in vacuo
- customThe crude product was purified by column chromatography with PE
出典と根拠
- ORDレコード
- ord-7df822b9d62d4de1af2f7511b62d0731
- 出典データセット
- uspto-grants-2012_06
- 特許番号
- US08198285B2
関連ノート
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