Water → 5-(1-Methylethoxy)-3-(1-phenyl-1H-pyrazol-5-yl)-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one

HRID 1407282ノート

反応式

HRID 1407282 の反応式
[OH:1][C:2]1[C:3](=[O:29])[C:4]([C:18]2[N:22]([C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)[N:21]=[CH:20][CH:19]=2)=[N:5][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:17])([F:16])[F:15])[CH:9]=2)[CH:7]=1.I[CH:31]([CH3:33])[CH3:32].C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[CH3:32][CH:31]([O:1][C:2]1[C:3](=[O:29])[C:4]([C:18]2[N:22]([C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=3)[N:21]=[CH:20][CH:19]=2)=[N:5][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:16])([F:15])[F:17])[CH:9]=2)[CH:7]=1)[CH3:33]

参加物

6

反応物 4

HCID 962WaterHCID 6362Isopropyl iodideHCID 11430Potassium CarbonateHCID 594362225-Hydroxy-3-(1-phenyl-1H-pyrazol-5-yl)-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one

生成物 1

HCID 594362025-(1-Methylethoxy)-3-(1-phenyl-1H-pyrazol-5-yl)-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one収率 72.2%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
60 °C

実験手順

A suspension of 5-hydroxy-3-(1-phenyl-1H-pyrazol-5-yl)-1-[3-(trifluoromethyl)phenyl]pyridazin-4(1H)-one (100 mg, 0.25 mmol), 2-iodopropane (0.050 mL, 0.50 mmol), and K2CO3 (104 mg, 0.75 mmol) in DMF (1 mL) was stirred for 20 h at 60° C. The reaction mixture was poured into water and extracted with AcOEt. The extract was washed with brine, dried over MgSO4, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography eluting with hexane/AcOEt (1/1) and crystallized from hexane/AcOEt to give the title compound (79.5 mg, 72% yield) as colorless prisms: mp 137-139° C.; NMR (300 MHz, CDCl3): δ ppm 1.38 (6H, d, J=6.4 Hz), 4.96-5.09 (1H, m), 7.05 (1H, dd, J=1.9, 7.9 Hz), 7.18 (1H, s), 7.33-7.46 (7H, m), 7.55 (1H, d, J=7.9 Hz), 7.80 (1H, d, J=1.9 Hz), 8.01 (1H, s). LC-MS (ESI) m/z 441 [M+H]+. Anal. Calcd for C23H19F3N4O2: C, 62.72; H, 4.35; N, 12.72. Found: C, 62.74; H, 4.40; N, 12.81.

後処理

  1. extractionextracted with AcOEt
  2. washThe extract was washed with brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by basic silica gel column chromatography
  6. washeluting with hexane/AcOEt (1/1)
  7. customcrystallized from hexane/AcOEt

出典と根拠

ORDレコード
ord-aee504c9e91641e5b8adc764f7d748a5
出典データセット
uspto-grants-2014_12
特許番号
US08916566B2

反応ノート

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