Potassium Carbonate → 9-[(3-trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

HRID 567339Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 567339
[C:1]([C:5]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:6]=1[C:7]1[C:8](=[O:18])[CH2:9][CH2:10][CH2:11][C:12]=1[NH:13]2)([O:3][CH3:4])=[O:2].[F:19][C:20]([F:31])([F:30])[O:21][C:22]1[CH:23]=[C:24]([CH:27]=[CH:28][CH:29]=1)[CH2:25]Br.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.C(OCC)(=O)C>[F:19][C:20]([F:30])([F:31])[O:21][C:22]1[CH:23]=[C:24]([CH2:25][N:13]2[C:12]3[CH2:11][CH2:10][CH2:9][C:8](=[O:18])[C:7]=3[C:6]3[C:14]2=[CH:15][CH:16]=[CH:17][C:5]=3[C:1]([O:3][CH3:4])=[O:2])[CH:27]=[CH:28][CH:29]=1

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 7371761-(Bromomethyl)-3-(trifluoromethoxy)benzeneHCID 11368514methyl 4-oxo-2,3,4,9-tetrahydro-1H-carbazole-5-carboxylate

Produkt 1

HCID 227395589-[(3-trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneAusbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (935 mg, 3.85 mM), 3-trifluoromethoxybenzyl bromide (1.0 g, 3.93 mM), and potassium carbonate (531 mg, 3.85 mM) in 20 mL DMF was stirred at room temperature for 17 hours. The mixture was diluted with ethyl acetate, washed with H2O and saturated brine, dried over anhydrous magnesium sulfate, filtered, concentrated to afford 1.6 g (100%) of the 9-[(3-trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as a foam. 1H NMR (DMSO-d6) δ 7.7 (dd, 1H, J=1 and 8 Hz), 7.45 (t, 1H, J=8 Hz), 7.3-7.1 (m, 4H), 7.05 (d, 1H, J=8 Hz), 5.6 (s, 2H), 3.8 (s, 3H), 3.0 (m, 2H), 2.45 (m, 2H), and 2.1 (m, 2H). IR (CHCl3, cm−1) 1729, 1647, 1439, 1259, 1176, and 1116. MS (ES) m/e 418.

Aufarbeitung

  1. washwashed with H2O and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-9622c549748d4a4c9c8aa22761f20282
Quelldatensatz
uspto-grants-2001_01
Patentnummer
US06177440B1

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