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Water → 3-[4-Chloro-2-fluoro-5-(propargyloxy)phenyl]-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine

HRID 849949
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인쇄 미리보기

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HRID 849949 반응식
[Cl:1][C:2]1[C:7]([OH:8])=[CH:6][C:5]([C:9]2[C:10](=[O:20])[N:11]([CH3:19])[C:12]([C:15]([F:18])([F:17])[F:16])=[CH:13][N:14]=2)=[C:4]([F:21])[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:28](Br)[C:29]#[CH:30].O>CN(C)C=O>[Cl:1][C:2]1[C:7]([O:8][CH2:30][C:29]#[CH:28])=[CH:6][C:5]([C:9]2[C:10](=[O:20])[N:11]([CH3:19])[C:12]([C:15]([F:18])([F:17])[F:16])=[CH:13][N:14]=2)=[C:4]([F:21])[CH:3]=1
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참가 물질

6

반응물 4

HCID 962WaterHCID 7842Propargyl bromideHCID 11430Potassium CarbonateHCID 193655113-(4-Chloro-2-fluoro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine2회

생성물 1

HCID 193655003-[4-Chloro-2-fluoro-5-(propargyloxy)phenyl]-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine수율 97.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
50 °C

실험 절차

First, 70 mg of 3-(4-chloro-2-fluoro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-61) was dissolved in 0.25 ml of N,N-dimethylformamide, to which 36 mg of potassium carbonate and 27 mg of propargyl bromide were added, and the mixture was stirred at 50° C. for 2 hours. After completion of the reaction, the reaction mixture was poured into water, followed by extraction with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried with anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography, which afforded 76 mg (yield, 96%) of 3-[4-chloro-2-fluoro-5-(propargyloxy)phenyl]-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-156; m.p., 106.9-107.1° C.).

후처리

  1. additionwere added
  2. customAfter completion of the reaction
  3. extractionfollowed by extraction with ethyl acetate
  4. washThe organic layer was washed with saturated sodium chloride solution
  5. dry with materialdried with anhydrous magnesium sulfate
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-805976836f624a448d11fe67aa50fee4
출처 데이터셋
uspto-grants-2000_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06015774

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