Dimethyl Sulfate → 3-(4-chloro-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione

HRID 36803

反応式

HRID 36803 の反応式
[Cl:1][C:2]1[C:7]([NH:8][S:9]([CH2:12][CH3:13])(=[O:11])=[O:10])=[CH:6][C:5]([N:14]2[C:19](=[O:20])[CH:18]=[C:17]([C:21]([F:24])([F:23])[F:22])[NH:16][C:15]2=[O:25])=[C:4]([F:26])[CH:3]=1.[C:27](=O)([O-])[O-].[K+].[K+].S(OC)(OC)(=O)=O>CC(C)=O>[Cl:1][C:2]1[C:7]([NH:8][S:9]([CH2:12][CH3:13])(=[O:11])=[O:10])=[CH:6][C:5]([N:14]2[C:19](=[O:20])[CH:18]=[C:17]([C:21]([F:24])([F:22])[F:23])[N:16]([CH3:27])[C:15]2=[O:25])=[C:4]([F:26])[CH:3]=1

参加物

5

反応物 3

HCID 6497Dimethyl SulfateHCID 11430Potassium CarbonateHCID 111124793-(4-chloro-5-ethylsulfonylamino-2-fluorophenyl)-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione

生成物 1

HCID 154053043-(4-chloro-5-ethylsulfonylamino-2-fluorophenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione収率 118.3%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

1.00 g (2.41 mmol) of 3-(4-chloro-5-ethylsulfonylamino-2-fluorophenyl)-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione was dissolved in 10 ml of acetone, and 0.17 g (1.20 mmol) of anhydrous potassium carbonate and 0.23 ml (2.41 mmol) of dimethyl sulfate were added thereto and the reaction was continued for 1.5 hours. After acetone was distilled off, the reaction product was dissolved in ethyl acetate, washed with water and saturated saline solution, and dried over anhydrous sodium sulfate. Thereafter the ethyl acetate was distilled off to obtain a crude product. The crude product was recrystallized from chloroformdiethyl ether, thereby obtaining 0.61 g of the objective product (yield: 59%) in the form of light yellow crystals.

後処理

  1. distillationAfter acetone was distilled off
  2. dissolutionthe reaction product was dissolved in ethyl acetate
  3. washwashed with water and saturated saline solution
  4. dry with materialdried over anhydrous sodium sulfate
  5. distillationThereafter the ethyl acetate was distilled off
  6. customto obtain a crude product
  7. customThe crude product was recrystallized from chloroformdiethyl ether

出典と根拠

ORDレコード
ord-30fbf4b7c40d4fae8e27479de6bcd0ff
出典データセット
uspto-grants-1995_05
特許番号
US05416236

関連ノート

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