Phosphorus oxychloride → Methyl 2-chloro-4-(4-fluorophenyl)-6-isopropylpyrimidine-5-carboxylate

HRID 968900

反応式

HRID 968900 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:13]([C:14]([O:16][CH3:17])=[O:15])=[C:12]([CH:18]([CH3:20])[CH3:19])[N:11]=[C:10](O)[N:9]=2)=[CH:4][CH:3]=1.P(Cl)(Cl)([Cl:24])=O.C(=O)([O-])O.[Na+]>>[Cl:24][C:10]1[N:9]=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=2)[C:13]([C:14]([O:16][CH3:17])=[O:15])=[C:12]([CH:18]([CH3:20])[CH3:19])[N:11]=1

参加物

4

反応物 3

HCID 24813Phosphorus oxychlorideHCID 516892Sodium BicarbonateHCID 178496923Methyl 6-(4-fluorophenyl)-1,2-dihydro-4-(1-methylethyl)-2-oxo-5-pyrimidinecarboxylate

生成物 1

HCID 11220571Methyl 2-chloro-4-(4-fluorophenyl)-6-isopropylpyrimidine-5-carboxylate収率 97.3%

反応条件

温度
103 °C

実験手順

In a 25 mL-volume glass flask equipped with a stirrer, a thermometer and a reflux condenser were placed 1.00 g (3.43 mmol.) of 4-(4-fluorophenyl)-2-hydroxy-6-isopropyl-5-methoxycarbonylpyrimidine and 3.4 mL (3.7 mmol.) of phosphorus oxychloride. The mixture was heated to 100-106° C. for 1.5 hours under refluxing, to carry out reaction. After the reaction was complete, the reaction mixture was cooled to room temperature, and poured into an ice/water mixture. The resulting aqueous mixture was neutralized with a saturated aqueous sodium hydrogen carbonate solution. The neutralized aqueous mixture was extracted with ethyl acetate. The ethyl acetate portion was separated, washed with a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate. The dried ethyl acetate portion was filtered and concentrated under reduced pressure, to obtain 1.03 g of 2-chloro-4-(4-fluorophenyl)-6-isopropyl-5-methoxycarbonylpyrimidine as a colorless crystalline product having the below-mentioned characteristics. The yield was 97% (based on the amount of 4-(4-fluorophenyl)-2-hydroxy-6-isopropyl-5-methoxycarbonylpyrimidine).

後処理

  1. customIn a 25 mL-volume glass flask equipped with a stirrer
  2. temperatureunder refluxing
  3. customreaction
  4. temperaturethe reaction mixture was cooled to room temperature
  5. extractionThe neutralized aqueous mixture was extracted with ethyl acetate
  6. customThe ethyl acetate portion was separated
  7. washwashed with a saturated aqueous sodium chloride solution
  8. dry with materialdried over anhydrous magnesium sulfate
  9. filtrationThe dried ethyl acetate portion was filtered
  10. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-03e56e2d78cc4c30bd7b8bbbed45d799
出典データセット
uspto-grants-2007_12
特許番号
US07304156B2

関連ノート

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