Sodium hydride → 6-Bromoquinolin-2-yl-2,2,2-trifluoro-1-methylethyl methanesulfonate

HRID 1094658

반응식

HRID 1094658 반응식
[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([C:12]([OH:18])([CH3:17])[C:13]([F:16])([F:15])[F:14])[CH:6]=[CH:5]2.[H-].[Na+].[CH3:21][S:22](Cl)(=[O:24])=[O:23]>C1COCC1>[CH3:21][S:22]([O:18][C:12]([C:7]1[CH:6]=[CH:5][C:4]2[C:9](=[CH:10][CH:11]=[C:2]([Br:1])[CH:3]=2)[N:8]=1)([CH3:17])[C:13]([F:15])([F:14])[F:16])(=[O:24])=[O:23]

참가 물질

5

실험 절차

To a solution of 6-Bromo-quinolin-2-yl-1,1,1-trifluoropropan-2-ol (5.06 g, 15.8 mmol) in THF (50 ml) was added sodium hydride (1.26 g, 31.6 mmol) portionwise at 0° C. and the mixture was stirred at room temperature for 2 hour. A solution of methanesulfonyl chloride (3.62 g, 31.6 mmol) in THF (10 ml) was added there at 0°. Then the reaction mixture was stirred at room temperature for 2 hours. The mixture was quenched with saturated sodium bicarbonate aqueous solution, and the product was extracted with ethyl acetate which was dried over sodium sulfate. Then, filtration, evaporation, purification through silica gel column chromatography eluting with hexane/ethyl acetate (15:1 to 5:1) furnished the title compound (6.29 g, 84% yield) as a white solid. 1H NMR (300 MHz, CDCl3) ppm 2.45 (3H, s), 3.24 (3H, s), 7.81-7.86 (2H, m), 7.96-8.05 (2H, m), 8.17 (1H, d, J=8.8 Hz). MS (ESI): m/z 397, 399 (M+H)+.

후처리

  1. stirringThen the reaction mixture was stirred at room temperature for 2 hours
  2. customThe mixture was quenched with saturated sodium bicarbonate aqueous solution
  3. extractionthe product was extracted with ethyl acetate which
  4. dry with materialwas dried over sodium sulfate
  5. filtrationThen, filtration, evaporation, purification through silica gel column chromatography
  6. washeluting with hexane/ethyl acetate (15:1 to 5:1)

출처 및 근거

ORD 기록
ord-3079872587b24efdb9c524c09119438a
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08134004B2

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