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Water → 3-(4-Fluoro-phenyl)-6-[2-(4-fluoro-phenyl)-2H-pyrazol-3-yl]-imidazo[1,2-a]pyridine

HRID 629272
ノート
印刷プレビュー

反応式

HRID 629272 の反応式
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([C:11]3[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=3)=[CH:9][N:10]=2)[CH:7]=1.[F:18][C:19]1[CH:24]=[CH:23][C:22]([N:25]2[C:29](B3OC(C)(C)C(C)(C)O3)=[CH:28][CH:27]=[N:26]2)=[CH:21][CH:20]=1.C([O-])([O-])=O.[Na+].[Na+].O>COCCOC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:17][C:14]1[CH:15]=[CH:16][C:11]([C:8]2[N:6]3[CH:7]=[C:2]([C:29]4[N:25]([C:22]5[CH:23]=[CH:24][C:19]([F:18])=[CH:20][CH:21]=5)[N:26]=[CH:27][CH:28]=4)[CH:3]=[CH:4][C:5]3=[N:10][CH:9]=2)=[CH:12][CH:13]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 901891376-Bromo-3-(4-fluorophenyl)-imidazo[1,2-a]pyridine2 回HCID 901893681-(4-fluorophenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole2 回

生成物 1

HCID 760725243-(4-Fluoro-phenyl)-6-[2-(4-fluoro-phenyl)-2H-pyrazol-3-yl]-imidazo[1,2-a]pyridine収率 31.2%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 80711,2-Dimethoxyethane溶媒

実験手順

To a mixture of 6-bromo-3-(4-fluorophenyl)-imidazo[1,2-a]pyridine (intermediate E) (100 mg, 344 μmol) and 1-(4-fluoro-phenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (intermediate A) (119 mg, 412 μl) in 1,2-dimethoxyethane (2 ml), was added 1M Na2CO3 (859 μl, 859 μmol), and the reaction mixture was purged with argon for 10 min in an ultrasonic bath. Afterwards tetrakis(triphenylphosphine)palladium(0) (39.7 mg, 34.4 μmol) was added, and the stirred reaction mixture was heated under reflux conditions for 17 h. The reaction mixture was cooled to room temperature, poured into water (20 ml) and extracted with ethyl acetate (2×20 ml). The combined organic layers were washed with brine (20 ml), dried (MgSO4) and evaporated. The crude material (190 mg) was further purified by flash chromatography on silica gel (dichloromethane/MeOH, 0-20%) and trituration (diethyl ether) to yield the title compound as an off-white solid (40 mg, 31%), MS (ISP) m/z=373.4 [(M+H)+], mp 172° C.

後処理

  1. customthe reaction mixture was purged with argon for 10 min in an ultrasonic bath
  2. customthe stirred reaction mixture
  3. temperaturewas heated under reflux conditions for 17 h
  4. extractionextracted with ethyl acetate (2×20 ml)
  5. washThe combined organic layers were washed with brine (20 ml)
  6. dry with materialdried (MgSO4)
  7. customevaporated
  8. customThe crude material (190 mg) was further purified by flash chromatography on silica gel (dichloromethane/MeOH, 0-20%) and trituration (diethyl ether)

出典と根拠

ORDレコード
ord-b92e13fb1ed246aab28d5c24368ac4fc
出典データセット
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09315502B2

反応ノート

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