Dimethylformamide → Ethyl [(4-formyl-1,3-dimethyl-1H-pyrazol-5-yl)sulfanyl]acetate

HRID 534816노트

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HRID 534816 반응식
Cl[C:2]1[N:6]([CH3:7])[N:5]=[C:4]([CH3:8])[C:3]=1[CH:9]=[O:10].[C:11]([O:15][CH2:16][CH3:17])(=[O:14])[CH2:12][SH:13].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH:9]([C:3]1[C:4]([CH3:8])=[N:5][N:6]([CH3:7])[C:2]=1[S:13][CH2:12][C:11]([O:15][CH2:16][CH3:17])=[O:14])=[O:10]

참가 물질

6

반응물 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 12185Ethyl ThioglycolateHCID 27773975-Chloro-1,3-dimethylpyrazole-4-carboxaldehyde

생성물 1

HCID 63802037Ethyl [(4-formyl-1,3-dimethyl-1H-pyrazol-5-yl)sulfanyl]acetate수율 28%

시약·촉매·용매 1

HCID 962Water용매

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온도
80 °C

실험 절차

A mixture of 5-chloro-1,3-dimethyl-1H-pyrazole-4-carbaldehyde (5.0 g), ethyl thioglycolate (3.97 g), potassium carbonate (5.53 g), and N,N-dimethylformamide (150 mL) was stirred at 80° C. for over-night. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by flash column chromatography (silica gel, 90:10-50:50 hexane/ethyl acetate) to provide the title compound (2.12 g, 28%) as an oil.

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by flash column chromatography (silica gel, 90:10-50:50 hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-999bf2ae987c468a98364e5d7f0d8ad4
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08853215B2

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