反応式
[NH2:1][C:2]1[C:7]([NH2:8])=[CH:6][C:5]([N+:9]([O-:11])=[O:10])=[CH:4][N:3]=1.[CH3:12][S:13][C:14]1[CH:22]=[CH:21][C:17]([C:18](O)=O)=[CH:16][CH:15]=1.[OH-].[Na+]>O>[CH3:12][S:13][C:14]1[CH:22]=[CH:21][C:17]([C:18]2[NH:1][C:2]3=[N:3][CH:4]=[C:5]([N+:9]([O-:11])=[O:10])[CH:6]=[C:7]3[N:8]=2)=[CH:16][CH:15]=1参加物
5
実験手順
1.0 g 2,3-diamino-5-nitropyridine and 1.125 g 4-methylsulfanylbenzoic acid in 20 ml polyphosphoric acid were heated to 160° C. with stirring for 15 hrs. The mixture was cooled and poured into water. The pH was adjusted to 4-5 by addition of sodium hydroxide and the precipitate collected by filtration. The filtration residue was stirred in 50 ml pyridine at 60° C., cooled and insoluble components removed by filtration. The filtrate was evaporated and the residue used without further purification in the next steps. Yield 0.656 g of 30% purity
後処理
- temperatureThe mixture was cooled
- filtrationthe precipitate collected by filtration
- stirringThe filtration residue was stirred in 50 ml pyridine at 60° C.
- temperaturecooled
- custominsoluble components removed by filtration
- customThe filtrate was evaporated
- customthe residue used without further purification in the next steps
出典と根拠
- ORDレコード
- ord-c68eca9ffc4d4fcdac1cbd35637b3f5b
- 出典データセット
- uspto-grants-2009_11
- 特許番号
- US07618964B2
関連ノート
読み込み中…