Water → 3-{2,4-Dichloro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine

HRID 849956ノート

反応式

HRID 849956 の反応式
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([OH:9])=[CH:4][C:3]=1[C:10]1[C:11](=[O:21])[N:12]([CH3:20])[C:13]([C:16]([F:19])([F:18])[F:17])=[CH:14][N:15]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH:29]([CH3:32])[C:30]#[CH:31].O>CN(C)C=O>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([O:9][CH:30]([C:29]#[CH:32])[CH3:31])=[CH:4][C:3]=1[C:10]1[C:11](=[O:21])[N:12]([CH3:20])[C:13]([C:16]([F:18])([F:17])[F:19])=[CH:14][N:15]=1

参加物

6

反応物 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 109424653-Bromo-1-butyneHCID 193655303-(2,4-Dichloro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine2 回

生成物 1

HCID 193655333-{2,4-Dichloro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine収率 92%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

First, 150 mg of 3-(2,4-dichloro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-357) was dissolved in 0.90 ml of N,N-dimethylformamide, to which 92 mg of potassium carbonate and 65 mg of 3-bromo-1-butyne were added, and the mixture was stirred at room temperature for 1 hour. 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 159 mg (yield, 92%) of 3-{2,4-dichloro-5-(3-butyn-2-yloxy)phenyl}-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-371).

後処理

  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

出典と根拠

ORDレコード
ord-de42ee6e39d1439ba7c7394f37985af4
出典データセット
uspto-grants-2000_01
特許番号
US06015774

反応ノート

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