Triethylamine → methyl 2-amino-6-chloro-3-methylbenzoate
反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:14])=[C:6]2[NH:12][C:11](=O)[O:10][C:8](=[O:9])[C:7]=12.C(N(CC)CC)C>CO>[NH2:12][C:6]1[C:5]([CH3:14])=[CH:4][CH:3]=[C:2]([Cl:1])[C:7]=1[C:8]([O:10][CH3:11])=[O:9]参加物
4
実験手順
110 g (0.52 mol) of 6-chloro-3-methylisatoic anhydride were introduced into a mixture of 750 ml of methanol and 47.6 g (0.47 mol) of triethylamine at 22° C. with stirring and the mixture was then stirred at 65° C. for 2 h. The reaction mixture was concentrated in vacuo, and the residue was taken up in methylene chloride and extracted 3× with 0.5 N sodium hydroxide solution. After drying over magnesium sulfate, filtering through silica gel and concentrating in vacuo, 45.5 g (43.8% of theory) of the title compound were obtained as a colorless oil of nD23=1.5765.
後処理
- stirringthe mixture was then stirred at 65° C. for 2 h
- concentrationThe reaction mixture was concentrated in vacuo
- extractionextracted 3× with 0.5 N sodium hydroxide solution
- dry with materialAfter drying over magnesium sulfate
- filtrationfiltering through silica gel
- concentrationconcentrating in vacuo, 45.5 g (43.8% of theory) of the title compound
- customwere obtained as a colorless oil of nD23=1.5765
出典と根拠
- ORDレコード
- ord-b568a890c9b84a9aac09e73c3e5749bc
- 出典データセット
- uspto-grants-2004_01
- 特許番号
- US06683213B1
反応ノート
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