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Acetic Acid → Dimethylmaleic anhydride
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Acetic Acid | HCID 176 | — |
| 反応物 | Maleic Anhydride | HCID 7923 | — |
| 反応物 | Sodium Acetate Trihydrate | HCID 23665404 | — |
| 触媒 | N-2-Pyridylaniline | HCID 81130 | — |
| 生成物 | Dimethylmaleic anhydride | HCID 13010 | 44.3% |
反応手順
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.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04639531 |
| 出典データセット | uspto-grants-1987_01 |
| ORD ID | ord-49e60844a8f64f8d865b5f062b4a5e7f |
| 出典メモ | uspto-grants-1987_01 |