3-Allyl-4-methyl-4,5-epoxypentan-2-one → 2,4-Dimethyl-3-(prop-2-en-1-yl)furan

HRID 894156ノート

反応式

HRID 894156 の反応式
[CH2:1]([CH:4]([C:8]1([CH3:11])[O:10][CH2:9]1)[C:5](=O)[CH3:6])[CH:2]=[CH2:3]>CCOCC>[CH3:11][C:8]1[O:10][CH:9]=[C:5]([CH3:6])[C:4]=1[CH2:1][CH:2]=[CH2:3]

参加物

3

反応物 1

HCID 132086283-Allyl-4-methyl-4,5-epoxypentan-2-one

生成物 1

HCID 132086342,4-Dimethyl-3-(prop-2-en-1-yl)furan収率 80.5%

試薬・触媒・溶媒 1

HCID 3283Diethyl Ether溶媒

反応条件

温度
220 °C

実験手順

A mixture of 3-allyl-4-methyl-4,5-epoxypentan-2-one (4.5 g) and glass powder (0.90 g) was stirred at a bath temperature of 220° C. for 10 hours in a nitrogen gas stream. After reaction, ether was added to the reaction mass, followed by drying over anhydrous magnesium sulfate. After removing the solvent by evaporation, the residue was distilled under reduced pressure to obtain 3.2 g of 2,4-dimethyl-3-allylfuran as a pale yellow oil.

後処理

  1. additionwas added to the reaction mass
  2. dry with materialby drying over anhydrous magnesium sulfate
  3. customAfter removing the solvent
  4. customby evaporation
  5. distillationthe residue was distilled under reduced pressure

出典と根拠

ORDレコード
ord-dad86084c0d841d6ada2d8b239c5b280
出典データセット
uspto-grants-1981_08
特許番号
US04282372

反応ノート

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