Chlorosuccinimide → 3-[5-chloro-4-(2,4-difluoro-benzyloxy)-2-methyl-6-oxo-6H-pyrimidin-1-yl]-4-methyl-benzoic acid methyl ester

HRID 2172594ノート

反応式

HRID 2172594 の反応式
[CH3:1][O:2][C:3](=[O:29])[C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[C:6]([N:11]2[C:16](=[O:17])[CH:15]=[C:14]([O:18][CH2:19][C:20]3[CH:25]=[CH:24][C:23]([F:26])=[CH:22][C:21]=3[F:27])[N:13]=[C:12]2[CH3:28])[CH:5]=1.[Cl:30]N1C(=O)CCC1=O>C(O)(C)C.ClC(Cl)C(O)=O>[CH3:1][O:2][C:3](=[O:29])[C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[C:6]([N:11]2[C:16](=[O:17])[C:15]([Cl:30])=[C:14]([O:18][CH2:19][C:20]3[CH:25]=[CH:24][C:23]([F:26])=[CH:22][C:21]=3[F:27])[N:13]=[C:12]2[CH3:28])[CH:5]=1

参加物

5

反応物 2

HCID 31398ChlorosuccinimideHCID 21089018Methyl 3-[4-[(2,4-difluorobenzyl)oxy]-2-methyl-6-oxopyrimidin-1(6H)-yl]-4-methylbenzoate

生成物 1

HCID 210901983-[5-chloro-4-(2,4-difluoro-benzyloxy)-2-methyl-6-oxo-6H-pyrimidin-1-yl]-4-methyl-benzoic acid methyl ester収率 82%

試薬・触媒・溶媒 2

HCID 6597Dichloroacetic Acid触媒HCID 3776Isopropanol溶媒

反応条件

温度
60 °C

実験手順

To a solution of 3-[4-(2,4-difluoro-benzyloxy)-2-methyl-6-oxo-6H-pyrimidin-1-yl]-4-methyl-benzoic acid methyl ester from Example 1, Step A (260 mg, 0.65 mmol) in isopropanol (5 mL) was added N-chlorosuccinimide (95 mg, 0.71 mmol) and 3 drops of dichloroacetic acid. The solution was heated at 60° C. for three hours. The solution was concentrated in vacuo and the residue was partitioned between ethyl acetate and water. The organic layer was washed with water and brine and dried over magnesium sulfate. The slurry was filtered and concentrated to provide the chlorinated product as a light yellow semi-solid (230 mg, 82%). MS (M+H): 435

後処理

  1. concentrationThe solution was concentrated in vacuo
  2. customthe residue was partitioned between ethyl acetate and water
  3. washThe organic layer was washed with water and brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationThe slurry was filtered
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-015134128ec44ec29500c8eacc47b2ed
出典データセット
uspto-grants-2015_06
特許番号
US09056110B2

反応ノート

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