2-Chloro-5-nitropyridine → HCID 4418042、化合物
反応式
Cl[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][N:3]=1>C(NCC)C.C(Cl)Cl>[CH2:2]([N:3]([CH2:4][CH3:5])[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][N:3]=1)[CH3:7]参加物
4
実験手順
A stirred mixture of 27.6 g (0.174 mole) of 2-chloro-5-nitropyridine in 500 ml of diethylamine was heated at reflux for two days. The excess diethylamine was removed by distillation under reduced pressure, leaving a residue. This residue was dissolved in methylene chloride, and the organic solution was washed with an aqueous, 10% sodium hydroxide solution. The washed organic phase was dried over anhydrous magnesium sulfate and was filtered. The filtrate was evaporated under reduced pressure to yield 33.2 g of 2-diethylamino-5-nitropyridine as a solid. The nmr spectrum was consistent with the proposed structure.
後処理
- temperaturewas heated
- temperatureat reflux for two days
- customThe excess diethylamine was removed by distillation under reduced pressure
- customleaving a residue
- washthe organic solution was washed with an aqueous, 10% sodium hydroxide solution
- dry with materialThe washed organic phase was dried over anhydrous magnesium sulfate
- filtrationwas filtered
- customThe filtrate was evaporated under reduced pressure
出典と根拠
- ORDレコード
- ord-ce5c4d0c44d6447eb50a8d7463a72ce8
- 出典データセット
- uspto-grants-1992_04
- 特許番号
- US05108486
反応ノート
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