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Hydrochloric Acid → 2-{2-(Methoxycarbonyl)methoxyphenoxy}-5-fluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene

HRID 1280350
ノート
印刷プレビュー

反応式

HRID 1280350 の反応式
[CH3:1][O:2][C:3]([CH2:5][O:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[OH:13])=[O:4].F[C:15]1[CH:20]=[C:19]([N:21]2[C:26](=[O:27])[CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[N:23]([CH3:32])[C:22]2=[O:33])[C:18]([F:34])=[CH:17][C:16]=1[N+:35]([O-:37])=[O:36].C(=O)([O-])[O-].[K+].[K+].Cl>CN(C)C=O>[CH3:1][O:2][C:3]([CH2:5][O:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[O:13][C:15]1[CH:20]=[C:19]([N:21]2[C:26](=[O:27])[CH:25]=[C:24]([C:28]([F:30])([F:31])[F:29])[N:23]([CH3:32])[C:22]2=[O:33])[C:18]([F:34])=[CH:17][C:16]=1[N+:35]([O-:37])=[O:36])=[O:4]
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 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 23202292-(Methoxycarbonyl)methoxyphenol2 回HCID 121155092,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene

生成物 1

HCID 187592902-{2-(Methoxycarbonyl)methoxyphenoxy}-5-fluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene
収率 41.7%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

A mixture of 15.16 g of 2-(methoxycarbonyl)methoxyphenol, 29.23 g of 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene (produced in Intermediate Production Example 4), 11.5 g of anhydrous potassium carbonate and 160 ml of N,N-dimethylformamide was stirred at room temperature for 30 minutes, and then, stirred at 70° C. for 3 hours. To the mixture, 5 g of 2-(methoxycarbonyl)methoxyphenol was added and stirred for 1 hour. The reaction solution was poured into 2% of aqueous hydrochloric acid solution and extracted with ethyl acetate. The organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 17.8 g of 2-{2-(methoxycarbonyl)methoxyphenoxy}-5-fluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene [Compound 4-19 of the present invention].

後処理

  1. stirringstirred at 70° C. for 3 hours
  2. stirringstirred for 1 hour
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with saturated saline
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-833a6d657f9947d195c728c9efa05c5e
出典データセット
uspto-grants-2002_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06451740B2

反応ノート

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