反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:14]([OH:16])=[O:15])[C:6](=[CH:10][C:11]=1[O:12][CH3:13])[C:7]([OH:9])=O>C(OC(=O)C)(=O)C>[CH3:13][O:12][C:11]1[CH:10]=[C:6]2[C:5](=[CH:4][C:3]=1[O:2][CH3:1])[C:14](=[O:15])[O:16][C:7]2=[O:9]参加物
3
反応条件
- 温度
- 120 °C
実験手順
A suspension of 4,5-dimethoxyphthalic acid (600 mg, 2.65 mmol) in acetic anhydride (5 ml) was heated to 120° C. for 1 hour. The solvent was then removed under vacuum to afford 5,6-dimethoxyisobenzofuran-1,3-dione as a yellow solid (552 mg, 2.65 mmol, quantitative yield). MS/ESI+ 208.9 [MH]+. This compound was used as such in the next step.
後処理
- customThe solvent was then removed under vacuum
出典と根拠
- ORDレコード
- ord-a0158521a50f40928df4c262338ecd87
- 出典データセット
- uspto-grants-2015_05
- 特許番号
- US09024027B2
関連ノート
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