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Ethyl 2,4-dimethyl-3-furoate → (2,4-Dimethylfuran-3-yl)methanol

HRID 1855794
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HRID 1855794 반응식
[CH3:1][C:2]1[O:3][CH:4]=[C:5]([CH3:12])[C:6]=1[C:7](OCC)=[O:8].[H-].[Al+3].[Li+].[H-].[H-].[H-]>CCOCC>[CH3:1][C:2]1[O:3][CH:4]=[C:5]([CH3:12])[C:6]=1[CH2:7][OH:8]
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참가 물질

4

반응물 2

HCID 579770Ethyl 2,4-dimethyl-3-furoateHCID 21226445Aluminium lithium hydride

생성물 1

HCID 12858598(2,4-Dimethylfuran-3-yl)methanol

시약·촉매·용매 1

HCID 3283Diethyl Ether용매2회

실험 절차

2,4-Dimethyl-3-carbethoxyfuran (42.8 g.) prepared in accordance with J. Amer. Chem. Soc., v. 73, 356 (1951) was dissolved in ether (100 ml.) and added slowly to a cooled (0°) slurry of lithium aluminum hydride (10 g.) in ether (200 ml.) and the mixture was then stirred at room temperature for 18 hours. After this time, the mixture was cooled in an ice bath and quenched with an aqueous solution of sodium sulfate (60 ml.; saturated) followed by the addition of solid magnesium sulfate. The solids were filtered off, washed well with additional ether and the combined ether extract was concentrated to yield 2,4-dimethyl-3-hydroxymethylfuran. Distillation gave pure 2,4-dimethyl-3-hydroxymethylfuran (21.1 g.) bp 63°-65° at 2 mm Hg.

후처리

  1. additionadded slowly to
  2. temperatureAfter this time, the mixture was cooled in an ice bath
  3. customquenched with an aqueous solution of sodium sulfate (60 ml.; saturated)
  4. additionfollowed by the addition of solid magnesium sulfate
  5. filtrationThe solids were filtered off
  6. washwashed well with additional ether
  7. extractionthe combined ether extract
  8. concentrationwas concentrated

출처 및 근거

ORD 기록
ord-33e0f1944d044a8ba32cee0c4f0f8306
출처 데이터셋
uspto-grants-1980_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04216312

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