4-Vinylbenzoic acid → Ethyl 4-vinylbenzoate
反応式
F[C:2]1[CH:16]=[C:15](I)[CH:14]=[CH:13][C:3]=1[C:4]([O:6][CH2:7][CH2:8][Si](C)(C)C)=[O:5].[CH:18](C1C=CC(C(O)=O)=CC=1)=[CH2:19]>>[CH:18]([C:15]1[CH:14]=[CH:13][C:3]([C:4]([O:6][CH2:7][CH3:8])=[O:5])=[CH:2][CH:16]=1)=[CH2:19]参加物
3
実験手順
Employing the same general procedure as for the preparation of trimethylsilanylethyl 2-fluoro-4-iodobenzoate (Compound D), 323 mg (2.2 mmol) of 4-vinylbenzoic acid was converted into the title compound using 462 mg (2.4 mmol) of 1-(3-dimethylaminopropyl-3-ethyl carbodiimide hydrochloride), 264 mg (2.2 mmol) of 4-dimethylaminopyridine, 0.32 ml (250 mg, 5.45 mmol) of ethanol and 16 mL of dichloromethane. Purification by flash chromatography (silica, 10% ethyl acetate in hexane) gave the title compound as a clear, colorless oil.
出典と根拠
- ORDレコード
- ord-36d24688f328439198ba53fc5889ed9a
- 出典データセット
- uspto-grants-2003_12
- 特許番号
- US06660755B2
反応ノート
読み込み中…