Acetic Anhydride → Ethyl 2-(2,4-dichloro-5-fluoro-3-nitrobenzoyl)-3-ethoxyacrylate
反応式
[Cl:1][C:2]1[C:15]([N+:16]([O-:18])=[O:17])=[C:14]([Cl:19])[C:13]([F:20])=[CH:12][C:3]=1[C:4]([CH2:6][C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5].[CH:21](OCC)(OCC)[O:22][CH2:23][CH3:24].C(OC(=O)C)(=O)C>>[Cl:1][C:2]1[C:15]([N+:16]([O-:18])=[O:17])=[C:14]([Cl:19])[C:13]([F:20])=[CH:12][C:3]=1[C:4]([C:6](=[CH:21][O:22][CH2:23][CH3:24])[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5]参加物
4
実験手順
244.8 g of ethyl (2,4-dichloro-5-fluoro-3-nitrobenzoyl)acetate are heated with 166 g of triethyl orthoformate and 185 g of acetic anhydride at 150°-160° C. for 3 hours. The mixture is then concentrated in vacuo, and 270 g of ethyl benzoylethoxyacrylate are obtained as an oily residue.
後処理
- concentrationThe mixture is then concentrated in vacuo, and 270 g of ethyl benzoylethoxyacrylate