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

HRID 894156노트

반응식

HRID 894156 반응식
[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]

참가 물질

3

반응물 1

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

생성물 1

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

시약·촉매·용매 1

HCID 3283Diethyl Ether용매

반응 조건

온도
220 °C

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-dad86084c0d841d6ada2d8b239c5b280
출처 데이터셋
uspto-grants-1981_08
특허 번호
US04282372

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