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Water → 3-(2,4-Dichloro-5-(1-methoxycarbonylethoxy)phenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine

HRID 849953
ノート
印刷プレビュー

反応式

HRID 849953 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]([CH3:34])[C:30]([O:32][CH3:33])=[O:31].O>CN(C)C=O>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([O:9][CH:29]([C:30]([O:32][CH3:33])=[O:31])[CH3:34])=[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
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 95576Methyl 2-bromopropionateHCID 193655303-(2,4-Dichloro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine2 回

生成物 1

HCID 193654943-(2,4-Dichloro-5-(1-methoxycarbonylethoxy)phenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine収率 98%

試薬・触媒・溶媒

1
HCID 6228Dimethylformamide溶媒

実験手順

Then, 0.15 g 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 0.092 g of potassium carbonate and 54 μl of methyl 2-bromopropionate 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 0.184 g (yield, 98%) of 3-(2,4-dichloro-5-(1-methoxycarbonylethoxy)phenyl)-1-methyl-6-trifluoromethyl-2-oxo-1,2-dihydropyrazine (present compound 1-387).

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-b9106fd438f94df3a58a794211032d62
出典データセット
uspto-grants-2000_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06015774

反応ノート

読み込み中…

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