8-Hydroxyquinoline → 3-(4-bromophenyl)-1-(4-(trifluoromethoxy)phenyl)-1 H-1,2,4-triazole

HRID 62061

반응식

HRID 62061 반응식
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:12]=[CH:11][NH:10][N:9]=2)=[CH:4][CH:3]=1.I[C:14]1[CH:19]=[CH:18][C:17]([O:20][C:21]([F:24])([F:23])[F:22])=[CH:16][CH:15]=1.OC1C=CC=C2C=1N=CC=C2.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O.O.C(OCC)(=O)C.[Cu]I>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:12]=[CH:11][N:10]([C:14]3[CH:15]=[CH:16][C:17]([O:20][C:21]([F:22])([F:23])[F:24])=[CH:18][CH:19]=3)[N:9]=2)=[CH:6][CH:7]=1

참가 물질

9

반응물 4

HCID 19238-HydroxyquinolineHCID 10796Cesium carbonateHCID 27772941-Iodo-4-(trifluoromethoxy)benzeneHCID 469487345-(4-Bromophenyl)-1H-1,2,4-triazole

생성물 1

HCID 904040773-(4-bromophenyl)-1-(4-(trifluoromethoxy)phenyl)-1 H-1,2,4-triazole수율 29.1%

시약·촉매·용매 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 962Water용매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

반응 조건

온도
150 °C

실험 절차

In a 500 mL flask, 3-(4-bromophenyl)-1H-1,2,4-triazole (20.0 g, 89.6 mmol), 1-iodo-4-(trifluoromethoxy)benzene (39.0 g, 135 mmol) were diluted with N,N-dimethylformamide and water (4:1, 100 mL). Then copper(I) iodide (15.3 g, 80.6 mmol), 8-hydroxyquinoline (8.50 g, 58.2 mmol) and cesium carbonate (87.4 g, 269 mmol) were added. The reaction was heated to 150° C. and stirred for 16 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate and filtered through Celite®. Brine solution was added to the filtrate and stirred for 15 minutes. The layers were separated and the aqueous layer further extracted with ethyl acetate. The combined organics were dried over magnesium sulfate, filtered, and concentrated. The resulting residue was purified by flash column chromatography using 15% ethyl acetate/petroleum ether as eluent to afford the title compound as a white solid (10.0 g, 29%): mp 100-103° C.; 1H NMR (300 MHz, DMSO-d6) δ 9.42 (s, 1H), 8.07 (d, J=9.0 Hz, 2H), 8.05 (d, J=9.0 Hz, 2H), 7.73 (d, J=8.4 Hz, 2H), 7.62 (d, J=8.4 Hz, 2H); ES+ m/z 385 ([M+H]+).

후처리

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered through Celite®
  3. additionBrine solution was added to the filtrate
  4. stirringstirred for 15 minutes
  5. customThe layers were separated
  6. extractionthe aqueous layer further extracted with ethyl acetate
  7. dry with materialThe combined organics were dried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe resulting residue was purified by flash column chromatography

출처 및 근거

ORD 기록
ord-8625bc0c58914aa885a3863b65ef9362
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09445594B2

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