Methyl iodide → 4-(3-Chloro-4-methoxybenzylamino)-5-methoxycarbonyl-2,6-dichloropyrimidine
反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:18]=[CH:19][C:20]=1[O:21][CH3:22])[CH2:5][NH:6][C:7]1[C:12]([C:13]([OH:15])=[O:14])=[C:11]([Cl:16])[N:10]=[C:9]([Cl:17])[N:8]=1.[C:23](=O)([O-])O.[Na+].CI.C(OC(C)C)(C)C>C(Cl)Cl.CCCCCC.CN(C)C=O>[Cl:1][C:2]1[CH:3]=[C:4]([CH:18]=[CH:19][C:20]=1[O:21][CH3:22])[CH2:5][NH:6][C:7]1[C:12]([C:13]([O:15][CH3:23])=[O:14])=[C:11]([Cl:16])[N:10]=[C:9]([Cl:17])[N:8]=1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 3
実験手順
A mixture of 4-(3-chloro-4-methoxybenzylamino)-5-carboxy-2,6-dichloropyrimidine (prepared in the above (1)) 17.55 g, sodium hydrogen carbonate 4.07 g, methyl iodide 5.48 ml and dimethylformamide 50 ml is stirred overnight at room temperature. The reaction mixture is diluted an aqueous saturated sodium hydrogen carbonate solution and extracted with ethyl acetate. The organic layer is washed, dried and concentrated in vacuo to give a pale yellow solid. The solid is suspended in a mixture of methylene chloride, isopropyl ether and hexane, and filtered. The precipitate is washed with a mixture of isopropyl ether and hexane to give 4-(3-chloro-4-methoxybenzylamino)-5-methoxycarbonyl-2,6-dichloropyrimidine as a colorless crystalline powder 8.64 g. mp 118-119° C.
後処理
- extractionextracted with ethyl acetate
- washThe organic layer is washed
- customdried
- concentrationconcentrated in vacuo
- customto give a pale yellow solid
- filtrationfiltered
- washThe precipitate is washed with a mixture of isopropyl ether and hexane
出典と根拠
- ORDレコード
- ord-0fb457c0d543483fa84c27b7ce87fa68
- 出典データセット
- uspto-grants-2007_09
- 特許番号
- US07273868B2
反応ノート
読み込み中…