反応式
C1(=O)O[C:4](=[O:5])[CH:3]=[CH:2]1.O.O.O.[C:11]([O-:14])(=[O:13])[CH3:12].[Na+].[C:16](O)(=O)C>C1(NC2C=CC=CN=2)C=CC=CC=1>[CH3:2][C:3]1=[C:12]([CH3:16])[C:11]([O:14][C:4]1=[O:5])=[O:13]参加物
5
実験手順
A solution of 98.0 g (1 mol) of maleic anhydride in 200 ml of glacial acetic acid is added dropwise over 1 hour to a boiling mixture of 1.7 g (0.01 mol) of 2-phenylaminopyridine and 22.8 g of sodium acetate trihydrate in 100 ml of glacial acetic acid. The mixture is subsequently boiled under reflux for 18 hours. Working up as in Example 1 affords 27.9 g (44.3%) of dimethylmaleic anhydride with a melting point of 91°-93° C.
後処理
- temperatureunder reflux for 18 hours
出典と根拠
- ORDレコード
- ord-49e60844a8f64f8d865b5f062b4a5e7f
- 出典データセット
- uspto-grants-1987_01
- 特許番号
- US04639531
関連ノート
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