Sodium hydride → 3-{[5'-Isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-5-(4-methylphenyl)-1,3-oxazolidin-2-one

HRID 1028500

Reaktionsgleichung

Reaktionsgleichung von HRID 1028500
[H-].[Na+].[CH3:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]2[O:14][C:13](=[O:15])[NH:12][CH2:11]2)=[CH:6][CH:5]=1.Br[CH2:17][C:18]1[CH:23]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:21]=[CH:20][C:19]=1[C:28]1[CH:33]=[C:32]([CH:34]([CH3:36])[CH3:35])[CH:31]=[CH:30][C:29]=1[O:37][CH3:38]>C1COCC1>[CH:34]([C:32]1[CH:31]=[CH:30][C:29]([O:37][CH3:38])=[C:28]([C:19]2[CH:20]=[CH:21][C:22]([C:24]([F:27])([F:25])[F:26])=[CH:23][C:18]=2[CH2:17][N:12]2[CH2:11][CH:10]([C:7]3[CH:6]=[CH:5][C:4]([CH3:3])=[CH:9][CH:8]=3)[O:14][C:13]2=[O:15])[CH:33]=1)([CH3:36])[CH3:35]

Komponenten

5

Edukt 3

HCID 24758Sodium hydrideHCID 124709465-(4-Methylphenyl)-1,3-oxazolidin-2-oneHCID 533636432-(Bromomethyl)-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl

Produkt 1

HCID 116630553-{[5'-Isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-5-(4-methylphenyl)-1,3-oxazolidin-2-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

Sodium hydride (6.4 mg of a 60% dispersion in mineral oil, 0.161 mmol) was added to a stirred solution of 5-(4-methylphenyl)-1,3-oxazolidin-2-one (37.7 mg, 0.0973 mmol) in dry THF (1 mL) at room temperature under N2. The reaction was stirred for 30 min and a solution of 2-(bromomethyl)-5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl (19.0 mg, 0.107 mmol) in dry THF (2 mL) was added by cannula. The reaction was stirred at room temperature for 3 days. The reaction was quenched with saturated NH4Cl (10 mL) and extracted with EtOAc (3×20 mL). The combined organic extracts were washed with brine (10 mL), dried (Na2SO4) and concentrated in vacuo to give the crude product. This was purified by flash chromatography (Si, 12×160 mm, 0-80% EtOAc in hexanes gradient) to afford 3-{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}-5-(4-methylphenyl)-1,3-oxazolidin-2-one as a colorless oil. Rf=0.37 (20% EtOAc/hexanes). LCMS calc.=484.21; found=484.2 (M+1)+. 1H NMR (benzene-d6, 500 MHz, 1:1 mixture of atropisomers) δ 7.76 (s, 0.5H), 7.65 (s, 0.5H), 7.31 (d, J=7.7 Hz, 1H), 7.08 (dd, J=8.4, 2.4 Hz, 1H), 7.05 (br d, J=7.8 Hz, 1H), 6.95-6.86 (m, 5H), 6.58 (t, J=7.7 Hz, 1H), 4.74 (t, J=8.0 Hz, 0.5H), 4.70 (t, J=8.0 Hz, 0.5H), 4.50 (d, J=15.7 Hz, 0.5H), 4.42 (d, J=15.7 Hz, 0.5H), 4.25 (d, J=15.7 Hz, 0.5H), 4.11 (d, J=15.7 Hz, 0.5H), 3.26 (s, 1.5H), 3.21 (s, 1.5H), 2.81 (t, J=8.6 Hz, 0.5H), 2.76 (septet, J=7.0 Hz, 1H), 2.68 (t, J=8.6 Hz, 0.5H), 2.55 (t, J=8.6 Hz, 0.5H), 2.53 (t, J=8.6 Hz, 0.5H), 2.04 (s, 3H), 1.20 (t, J=7.0 Hz, 3H), 1.19 (t, J=7.0 Hz, 3H).

Aufarbeitung

  1. stirringThe reaction was stirred at room temperature for 3 days
  2. customThe reaction was quenched with saturated NH4Cl (10 mL)
  3. extractionextracted with EtOAc (3×20 mL)
  4. washThe combined organic extracts were washed with brine (10 mL)
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated in vacuo
  7. customto give the crude product
  8. customThis was purified by flash chromatography (Si, 12×160 mm, 0-80% EtOAc in hexanes gradient)

Quellen und Nachweise

ORD-Eintrag
ord-3d061e8f893a45ef8ce1f456f0ff07bc
Quelldatensatz
uspto-grants-2014_05
Patentnummer
US08735435B2

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