Triethanolamine → Ethyl 6-hydroxy-4-methylhexa-2,4-dienoate
反応式
C([O:4][CH2:5][CH:6]=[C:7]([CH3:15])[CH:8]=[CH:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])(=O)C.C(=O)([O-])[O-].[Na+].[Na+].N(CCO)(CCO)CCO.C(OCC)(=O)C>C(O)C>[OH:4][CH2:5][CH:6]=[C:7]([CH3:15])[CH:8]=[CH:9][C:10]([O:12][CH2:13][CH3:14])=[O:11]参加物
6
実験手順
27.5 g of ethyl 6-acetoxy-4-methyl-2,4-hexadienoate, 20 g of sodium carbonate and 2 ml of triethanolamine were heated to reflux for 3 hours in 250 ml of ethanol. After the addition of ethyl acetate, the organic phase was washed with saturated sodium chloride solution, dried over magnesium sulphate and concentrated. Distillation at 110° C./0.4 mmHg gave 15.7 g (71%) of ethyl 6-hydroxy-4-methyl-2,4-hexadienoate.
後処理
- washthe organic phase was washed with saturated sodium chloride solution
- dry with materialdried over magnesium sulphate
- concentrationconcentrated
- distillationDistillation at 110° C./0.4 mmHg
出典と根拠
- ORDレコード
- ord-ea7b9da8a510461684ede7de40d5d547
- 出典データセット
- uspto-grants-1985_09
- 特許番号
- US04539154
反応ノート
読み込み中…