Water → 1,3,3,6,6-Pentamethylcyclohex-1-ene
反応式
[CH3:1][C:2]1(O)[CH2:7][C:6]([CH3:9])([CH3:8])[CH2:5][CH2:4][C:3]1([CH3:11])[CH3:10].C1(C)C=CC(S(O)(=O)=O)=CC=1.O.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC=CC=1>[CH3:1][C:2]1[C:3]([CH3:11])([CH3:10])[CH2:4][CH2:5][C:6]([CH3:9])([CH3:8])[CH:7]=1参加物
6
実験手順
22.6 g of 1,2,2,5,5-pentamethylcyclohexanol are dissolved in 280 ml of benzene and, after the addition of 100 mg of p-toluenesulphonic acid, the mixture is boiled on a water separator for 7 hours. After cooling the solution, some solid sodium carbonate is added thereto, the mixture is filtered and the filtrate is evaporated at normal pressure. The residue is distilled in a water-jet vacuum. There are obtained 15.8 g of 1,3,3,6,6-pentamethylcyclohexen as a colorless liquid, b.p. 56°-57° C./17 mm.
後処理
- temperatureAfter cooling the solution
- filtrationthe mixture is filtered
- customthe filtrate is evaporated at normal pressure
- distillationThe residue is distilled in a water-jet vacuum
出典と根拠
- ORDレコード
- ord-72b188ef8ba540d6b76b7245babb4214
- 出典データセット
- uspto-grants-1989_03
- 特許番号
- US04816476
反応ノート
読み込み中…