Dimethylformamide → AZ-2088
反応式
[CH3:1][N:2]([CH3:14])[CH:3]1[CH2:8][CH:7]([CH:9]([CH3:11])[CH3:10])[CH2:6][CH2:5][C:4]1([OH:13])[CH3:12].[CH2:15]([Br:22])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20]C.[CH3:23]N(C)C=O>O>[Br-:22].[CH3:14][N+:2]([CH3:23])([CH2:1][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])[CH:3]1[CH2:8][CH:7]([CH:9]([CH3:11])[CH3:10])[CH2:6][CH2:5][C:4]1([OH:13])[CH3:12]参加物
5
反応条件
- 温度
- 90 °C
実験手順
Five grams of 2-dimethylamino-1-p-menthanol and 10 g. of heptyl bromide were dissolved in 5 ml. of dimethylformamide. The solution was warmed at 90°C (under nitrogen) for 16 hours, cooled to room temperature and diluted with water (approximately 100 ml.). The mixture was transferred to a separatory funnel and washed three times with ethyl ether (20-25 ml.). The neutral, aqueous phase was concentrated to dryness on a film evaporator (at 50°C). Ninety-five percent ethanol was added to the flask contents to assist the azeotropic removal of water. Last traces of DMF were removed at high vacuum (1 mm.). Yield of dimethyl heptyl (1-hydroxy-p-menthan-2-yl) ammonium bromide was 10.2 g. (100T of theory).
後処理
- temperaturecooled to room temperature
- customThe mixture was transferred to a separatory funnel
- washwashed three times with ethyl ether (20-25 ml.)
- concentrationThe neutral, aqueous phase was concentrated to dryness on a film evaporator (at 50°C)
- additionNinety-five percent ethanol was added to the flask contents
- customthe azeotropic removal of water
- customLast traces of DMF were removed at high vacuum (1 mm.)
出典と根拠
- ORDレコード
- ord-a1e4fbf499da4448b9e3bbfc581a6fc8
- 出典データセット
- uspto-grants-1976_06
- 特許番号
- US03960539
反応ノート
読み込み中…