Oxalyl chloride → HCID 21833062、化合物
反応式
[C:1]([C:4]1[O:5][C:6]2[C:7](=[C:9]([C:15]([OH:17])=O)[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH:8]=1)(=[O:3])[CH3:2].C(Cl)(=O)C([Cl:21])=O>ClCCl.CN(C)C=O>[C:1]([C:4]1[O:5][C:6]2[C:7](=[C:9]([C:15]([Cl:21])=[O:17])[CH:10]=[CH:11][C:12]=2[O:13][CH3:14])[CH:8]=1)(=[O:3])[CH3:2]参加物
5
実験手順
2-Acetyl-7-methoxybenzofuran-4-carboxylic acid (0.12 g) was suspended in anhydrous dichloromethane (4 ml) at room temperature under nitrogen and oxalyl chloride (0.1 ml) added followed by 3 drops of N,N-dimethylformamide. Evaporation in vacuo after 2 h afforded the title compound as a yellow solid (~0.5 g). TLC Rf 0.60 (50% ethyl acetate in hexane)
後処理
- customEvaporation in vacuo after 2 h
出典と根拠
- ORDレコード
- ord-d9c26f8cadea437291fb631ca0b302d6
- 出典データセット
- uspto-grants-1999_07
- 特許番号
- US05925636
反応ノート
読み込み中…