3-Methyl-2-buten-1-OL → Ethyl 3,3-dimethylpent-4-enoate
反応式
[CH3:1][C:2]([CH3:6])=[CH:3][CH2:4]O.[C:7]([O-:13])([O-])([O:9][CH2:10][CH3:11])[CH3:8]>C1(C=CC(O)=CC=1)O>[CH3:1][C:2]([CH3:6])([CH:3]=[CH2:4])[CH2:8][C:7]([O:9][CH2:10][CH3:11])=[O:13]参加物
4
実験手順
A mixture of 12.9 g (0.15 mole) of 3-methyl-2-buten-1-ol, 48.6 g (0.3 mole) of ethyl orthoacetate and 0.5 g of hydroquinone was heated at 140° for 20 hours with stirring. Ethanol was removed by distillation during the heating. At the end of 20 hours, the mixture was distilled under reduced pressure to give, after removal of unreacted ethyl orthoacetate, 17.6 g (75% yield) of ethyl 3,3-dimethyl-4-pentenoate, b.p. 74°-78°/55 mm.
後処理
- temperaturewas heated at 140° for 20 hours
- customEthanol was removed by distillation during the heating
- distillationAt the end of 20 hours, the mixture was distilled under reduced pressure
- customto give
出典と根拠
- ORDレコード
- ord-975f344e2ddf41008236f96ee7ec480b
- 出典データセット
- uspto-grants-1991_03
- 特許番号
- US04999451
反応ノート
読み込み中…