Triethylamine → 3-(4-Fluorophenyl)-imidazo[1,5-a]pyridine-8-carboxylic acid 3-trifluoromethyl-benzylamide

HRID 1423029ノート

反応式

HRID 1423029 の反応式
Br[C:2]1[C:3]2[N:4]([C:8]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)=[N:9][CH:10]=2)[CH:5]=[CH:6][CH:7]=1.CC[N:20]([CH2:23][CH3:24])[CH2:21]C.[F:25][C:26]([F:36])([F:35])[C:27]1[CH:28]=C([CH:32]=[CH:33][CH:34]=1)CN.[C]=[O:38]>C1(C)C=CC=CC=1.[Cl-].[NH4+].C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.[Fe+2]>[F:25][C:26]([F:36])([F:35])[C:27]1[CH:28]=[C:24]([CH:32]=[CH:33][CH:34]=1)[CH2:23][NH:20][C:21]([C:2]1[C:3]2[N:4]([C:8]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)=[N:9][CH:10]=2)[CH:5]=[CH:6][CH:7]=1)=[O:38]

参加物

8

反応物 4

HCID 8471TriethylamineHCID 759623-(Trifluoromethyl)benzylamineHCID 671955508-Bromo-3-(4-fluorophenyl)-imidazo[1,5-a]pyridineHCID 178418416HCID 178418416、化合物

生成物 1

HCID 529356403-(4-Fluorophenyl)-imidazo[1,5-a]pyridine-8-carboxylic acid 3-trifluoromethyl-benzylamide

試薬・触媒・溶媒 3

HCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)触媒HCID 1140Toluene溶媒HCID 25517Ammonium Chloride溶媒

反応条件

温度
140 °C

実験手順

A mixture of 8-bromo-3-(4-fluorophenyl)-imidazo[1,5-a]pyridine (0.100 g, 0.344 mmol), Et3N (95.0 μL, 0.683 mmol), 3-(trifluoromethyl)benzylamine (89.0 μL, 0.621 mmol), Pd[PhCN]2Cl2 (5.0 mg, 0.013 mmol), and dppf (21 mg, 0.038 mmol) in degassed toluene (10 mL) is placed in a pressure reactor. The stirred mixture is placed under 15 bars of carbon monoxide and warmed at 140° C. After 3 hours, the pressure reactor is cooled to room temperature, returned to atmospheric pressure and opened. The reaction mixture is diluted with saturated aqueous ammonium chloride (10 mL) and extracted with EtOAc (3×10 mL). The combined organic layers are washed with saturated aqueous ammonium chloride (3×10 mL), brine (10 mL), dried over magnesium sulfate, filtered and concentrated. The residue is purified by silica gel chromatography eluting with a gradient of 0-50% EtOAc in dichloromethane. The resulting solid is triturated with ether-hexanes to afford the title compound.

後処理

  1. customis placed in a pressure reactor
  2. temperaturethe pressure reactor is cooled to room temperature
  3. extractionextracted with EtOAc (3×10 mL)
  4. washThe combined organic layers are washed with saturated aqueous ammonium chloride (3×10 mL), brine (10 mL)
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue is purified by silica gel chromatography
  9. washeluting with a gradient of 0-50% EtOAc in dichloromethane
  10. customThe resulting solid is triturated with ether-hexanes

出典と根拠

ORDレコード
ord-ed940bd698bc4d40be68049441a0a93b
出典データセット
uspto-grants-2015_01
特許番号
US08927550B2

反応ノート

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