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Potassium Carbonate → (5-(4-chloro-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)-4-fluoro-2-nitrophenyl)thio-acetic acid, ethyl ester

HRID 2395641
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HRID 2395641 반응식
[Cl:1][C:2]1[C:3]([C:12]2[CH:17]=[C:16](F)[C:15]([N+:19]([O-:21])=[O:20])=[CH:14][C:13]=2[F:22])=[N:4][N:5]([CH3:11])[C:6]=1[C:7]([F:10])([F:9])[F:8].C([O-])([O-])=O.[K+].[K+].[SH:29][CH2:30][C:31](OCC)=O.CN1CC[CH2:39][C:38]1=[O:42]>O>[Cl:1][C:2]1[C:3]([C:12]2[C:13]([F:22])=[CH:14][C:15]([N+:19]([O-:21])=[O:20])=[C:16]([CH2:31][C:30]([O:42][CH2:38][CH3:39])=[S:29])[CH:17]=2)=[N:4][N:5]([CH3:11])[C:6]=1[C:7]([F:9])([F:8])[F:10]
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참가 물질

6

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HCID 11430Potassium CarbonateHCID 12185Ethyl ThioglycolateHCID 13387N-methyl-2-pyrrolidoneHCID 152785694-chloro-3-(2,5-difluoro-4-nitrophenyl)-1-methyl-5-(trifluoromethyl)-1H-pyrazole

생성물 1

HCID 86747520(5-(4-chloro-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)-4-fluoro-2-nitrophenyl)thio-acetic acid, ethyl ester수율 43%

시약·촉매·용매

1
HCID 962Water용매

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온도
28 °C

실험 절차

At 25° C., 1.5 g (4.5 Mole) 4-chloro-3-(2,5-difluoro-4-nitrophenyl)-1-methyl-5-(trifluoromethyl)-1H-pyrazole, 0.69 g (5.0 mmole) K2CO3, 0.55 mL (5.0 mmole) ethyl mercaptoacetate, and 0.05 g (0.5 mmole) CuF2 were slurried in 15 mL 1-methyl-2-pyrrolidinone. The reaction mixture was stirred 28° C. for 24 hours. The mixture was cooled, diluted with 100 mL cold water, and extracted four times with ethyl acetate. The ethyl acetate extracts were washed with brine, dried over anhydrous MgSO4, and stripped in vacuo. The residue was purified chromato-graphically using 10% diethyl ether and 15% methylene chloride in hexane as the eluent to give 0.86 g (43%) of (5-(4-chloro-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)-4-fluoro-2-nitrophenyl)thio-acetic acid, ethyl ester as a yellow solid, mp 79° C.

후처리

  1. customAt 25° C.
  2. temperatureThe mixture was cooled
  3. extractionextracted four times with ethyl acetate
  4. washThe ethyl acetate extracts were washed with brine
  5. dry with materialdried over anhydrous MgSO4
  6. customThe residue was purified chromato-graphically

출처 및 근거

ORD 기록
ord-6b0d08f35f4d4197957de58112f21842
출처 데이터셋
uspto-grants-1996_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05489571

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