Water → 4-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-trifluoromethyl benzoic acid methyl ester

HRID 452494ノート

反応式

HRID 452494 の反応式
[CH3:1][O:2][C:3](=[O:28])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH2:14][C:13]([C:19]3[CH:24]=[C:23]([Cl:25])[CH:22]=[C:21]([Cl:26])[CH:20]=3)([C:15]([F:18])([F:17])[F:16])[O:12][N:11]=2)=[CH:6][C:5]=1I.[F-:29].[K+].COC(=O)[C:34](Cl)([F:36])[F:35].O>CN(C)C=O.[Cu]I>[CH3:1][O:2][C:3](=[O:28])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH2:14][C:13]([C:19]3[CH:24]=[C:23]([Cl:25])[CH:22]=[C:21]([Cl:26])[CH:20]=3)([C:15]([F:18])([F:17])[F:16])[O:12][N:11]=2)=[CH:6][C:5]=1[C:34]([F:36])([F:29])[F:35]

参加物

7

反応物 4

HCID 962WaterHCID 73935Methyl chlorodifluoroacetateHCID 522689Potassium FluorideHCID 667844134-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-iodo benzoic acid methyl ester

生成物 1

HCID 595634864-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-trifluoromethyl benzoic acid methyl ester収率 98.7%

試薬・触媒・溶媒 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
120 °C

実験手順

In a solution of 0.51 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-iodo benzoic acid methyl ester in 5 ml of N,N-dimethylformamide, 0.18 g of copper (I) iodide, 0.06 g of potassium fluoride and 0.27 g of chlorodifluoro acetic acid methyl ester were added, and stirred at 120° C. for 5 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, 50 ml of water was added and extracted with ethyl acetate (50 ml×2). The organic phase was washed with water, dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with ethyl acetate-hexane (1:4), and 0.45 g of the aimed product was obtained as pale yellow oily substance.

後処理

  1. customAfter the completion of the reaction
  2. waitthe reaction mixture was left
  3. temperaturecooled to room temperature
  4. extractionextracted with ethyl acetate (50 ml×2)
  5. washThe organic phase was washed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. distillationthe solvent was distilled off under reduced pressure
  8. customThe residue was purified with silica gel column chromatography that

出典と根拠

ORDレコード
ord-50518a749fb5493c9317e3bb1ae4e112
出典データセット
uspto-grants-2013_07
特許番号
US08492311B2

反応ノート

読み込み中…