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Potassium Carbonate → 2,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene

HRID 15371
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HRID 15371 반응식
[F:1][C:2]1[CH:7]=[C:6](F)[C:5]([F:9])=[CH:4][C:3]=1[N+:10]([O-:12])=[O:11].[CH3:13][N:14]1[C:19]([C:20]([F:23])([F:22])[F:21])=[CH:18][C:17](=[O:24])[NH:16][C:15]1=[O:25].C(=O)([O-])[O-].[K+].[K+]>CS(C)=O>[F:1][C:2]1[CH:7]=[C:6]([N:16]2[C:17](=[O:24])[CH:18]=[C:19]([C:20]([F:22])([F:23])[F:21])[N:14]([CH3:13])[C:15]2=[O:25])[C:5]([F:9])=[CH:4][C:3]=1[N+:10]([O-:12])=[O:11]
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참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 750121,2,4-Trifluoro-5-nitrobenzeneHCID 114354801-Methyl-6-trifluoromethylpyrimidine-2,4-dione

생성물 1

HCID 121155092,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene수율 43%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

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온도
80 °C

실험 절차

Into 10 ml of dimethylsulfoxide was dissolved 1.77 g of 2,4,5-trifluoronitrobenzene and 1.94 g of 3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydro pyrimidine. After adding 1.52 g of anhydrous potassium carbonate at room temperature, the mixture was stirred at 80° C. for 1 hour. The reaction solution was cooled to room temperature, and then the solution was poured into ice-water and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica-gel column chromatography to give 1.51 g of 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene.

후처리

  1. temperatureThe reaction solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated aqueous sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-92e4c09c9b51455b9658939658b8bbe7
출처 데이터셋
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07732602B2

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