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Water → (5-Methyl-3-trifluoromethylisoxazol-4-yl)-methanol

HRID 1292811
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HRID 1292811 반응식
[H-].[Al+3].[Li+].[H-].[H-].[H-].C([O:9][C:10]([C:12]1[C:13]([C:18]([F:21])([F:20])[F:19])=[N:14][O:15][C:16]=1[CH3:17])=O)C.C(OCC)(=O)C.O>C1COCC1>[CH3:17][C:16]1[O:15][N:14]=[C:13]([C:18]([F:21])([F:20])[F:19])[C:12]=1[CH2:10][OH:9]
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참가 물질

6

반응물 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 136639574-Ethoxycarbonyl-5-methyl-3-trifluoromethylisoxazoleHCID 21226445Aluminium lithium hydride

생성물 1

HCID 17862894(5-Methyl-3-trifluoromethylisoxazol-4-yl)-methanol수율 65.7%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매
2회

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온도
0 °C

실험 절차

A solution of 0. 16 g (4.2 mmoles) of lithium aluminum hydride dissolved in 15 ml of THF was cooled to 0° C. Thereto was gradually added a solution of 0.93 g (4.2 mmoles) of 4-ethoxycarbonyl-5-methyl-3-trifluoromethylisoxazole dissolved in 15 ml of THF. The mixture was stirred at 0° C. for 1 hour to give rise to a reaction. After the completion of the reaction, ethyl acetate was added, followed by stirring for a while. Water was added, followed by stirring for a while. The reaction mixture was filtered under vacuum. The filtrate was extracted with diethyl ether. The resulting organic layer was washed with an aqueous sodium chloride solution and then dried over anhydrous magnesium sulfate. The resulting solution was subjected to vacuum distillation to remove the solvent contained therein, to obtain 0.5 g (yield: 60.0%) of (5-methyl-3-trifluoromethylisoxazol-4-yl)-methanol.

후처리

  1. customto give rise
  2. customto a reaction
  3. additionwas added
  4. stirringby stirring for a while
  5. stirringby stirring for a while
  6. filtrationThe reaction mixture was filtered under vacuum
  7. extractionThe filtrate was extracted with diethyl ether
  8. washThe resulting organic layer was washed with an aqueous sodium chloride solution
  9. dry with materialdried over anhydrous magnesium sulfate
  10. distillationThe resulting solution was subjected to vacuum distillation
  11. customto remove the solvent

출처 및 근거

ORD 기록
ord-a67832b2f6e44778a09f745c9833ca02
출처 데이터셋
uspto-grants-2007_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07238689B2

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