反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:9]2[CH:10]=[CH:11][C:12](=O)[NH:13][CH:14]=2)=[CH:4][CH:3]=1.C1(P(Cl)([Cl:30])=O)C=CC=CC=1>>[Cl:30][C:12]1[CH:11]=[CH:10][C:9]([CH:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[CH:14][N:13]=1参加物
3
実験手順
Combine 50 g. (0.174 mole) of the 5-substituted 2-pyridone from step A with 125 ml. of phenylphosphonic dichloride and heat at 210°-220° C. for about 7 hours with stirring. Allow to stand overnight and pour onto ice. Basify with ammonium hydroxide and extract with ethyl ether. Dry the ether solution and concentrate to a residue. Distill the residue and collect the fraction boiling at 205°-215° C. at 0.55 mm. (49 g.).
後処理
- additionpour onto ice
- extractionBasify with ammonium hydroxide and extract with ethyl ether
- dry with materialDry the ether solution
- concentrationconcentrate to a residue
- distillationDistill the residue
- customcollect the fraction boiling at 205°-215° C. at 0.55 mm
出典と根拠
- ORDレコード
- ord-db9f39e8ab614a5c9ef4e5f6d14a94c0
- 出典データセット
- uspto-grants-1979_02
- 特許番号
- US04138488
関連ノート
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