Potassium Carbonate → 4-(1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazol-3-yl)aniline

HRID 62034

반응식

HRID 62034 반응식
Br[C:2]1[N:6]=[CH:5][N:4]([C:7]2[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:15])[F:14])=[CH:9][CH:8]=2)[N:3]=1.CC1(C)C(C)(C)OB([C:25]2[CH:31]=[CH:30][C:28]([NH2:29])=[CH:27][CH:26]=2)O1.C(=O)([O-])[O-].[K+].[K+]>COCCOC.O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[F:14][C:13]([F:16])([F:15])[C:10]1[CH:11]=[CH:12][C:7]([N:4]2[CH:5]=[N:6][C:2]([C:25]3[CH:31]=[CH:30][C:28]([NH2:29])=[CH:27][CH:26]=3)=[N:3]2)=[CH:8][CH:9]=1

참가 물질

7

반응물 3

HCID 11430Potassium CarbonateHCID 27346204-(Tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 904043003-bromo-1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazole

생성물 1

HCID 893731204-(1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazol-3-yl)aniline수율 74.5%

시약·촉매·용매 3

HCID 11979704Tetrakis(triphenylphosphine)palladium촉매HCID 962Water용매HCID 80711,2-Dimethoxyethane용매

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온도
120 °C

실험 절차

To 3-bromo-1-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazole (5.64 g, 18.35 mmol) was added 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (7.42 g, 33.9 mmol), tetrakis(triphenylphosphine) palladium(0) (3.30 g, 2.86 mmol), and potassium carbonate (7.82 g, 56.6 mmol) in 1,2-dimethoxyethane (75 mL) and water (18 mL). The mixture was degassed with nitrogen for 10 minutes. The reaction mixture was heated at 120° C. for 20 h. The reaction was cooled to room temperature and diluted with ethyl acetate (100 mL). The resultant salts were filtered and the filtrated layers were separated. The aqueous layer was separated with ethyl acetate (2×25 mL). The combined organic layers were dried over anhydrous magnesium sulfate and concentrated onto Celite®. Purification by silica gel chromatography using 0-100% ethyl acetate/hexanes as eluent provided the title compound as a yellow solid (4.16 g, 68%): 1H NMR (400 MHz, CDCl3) δ 8.60 (s, 1H), 8.03-7.97 (m, 2H), 7.88 (d, J=8.4 Hz, 2H), 7.77 (d, J=8.5 Hz, 2H), 6.79-6.74 (m, 2H), 3.88 (s, 2H); 13C NMR (101 MHz, CDCl3) δ 163.94, 148.07, 139.68, 129.67, 129.34, 128.04, 127.07, 127.04, 127.00, 126.96, 125.05, 120.50, 119.35, 114.87; 19F NMR (376 MHz, CDCl3) δ −62.43; ESIMS m/z 305.1 ([M+H]+).

후처리

  1. customThe mixture was degassed with nitrogen for 10 minutes
  2. temperatureThe reaction was cooled to room temperature
  3. additiondiluted with ethyl acetate (100 mL)
  4. filtrationThe resultant salts were filtered
  5. customthe filtrated layers were separated
  6. customThe aqueous layer was separated with ethyl acetate (2×25 mL)
  7. dry with materialThe combined organic layers were dried over anhydrous magnesium sulfate
  8. concentrationconcentrated onto Celite®
  9. customPurification by silica gel chromatography

출처 및 근거

ORD 기록
ord-11d90400b44c41d88f7b2be19367c6e3
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09445594B2

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