Water → 1-[1-(2-Fluoroethyl)-4-piperidinyl]-4-[3-(methyloxy)-4-nitrophenyl]piperazine

HRID 419396Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 419396
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([N:12]2[CH2:17][CH2:16][N:15]([CH:18]3[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]3)[CH2:14][CH2:13]2)[CH:6]=[CH:7][C:8]=1[N+:9]([O-:11])=[O:10].C([O-])([O-])=O.[Na+].[Na+].I[CH:31]([F:33])[CH3:32].O>C(#N)C>[F:33][CH2:31][CH2:32][N:21]1[CH2:22][CH2:23][CH:18]([N:15]2[CH2:14][CH2:13][N:12]([C:5]3[CH:6]=[CH:7][C:8]([N+:9]([O-:11])=[O:10])=[C:3]([O:2][CH3:1])[CH:4]=3)[CH2:17][CH2:16]2)[CH2:19][CH2:20]1

Komponenten

6

Edukt 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 23510620IodofluoroethaneHCID 594529341-[3-(Methyloxy)-4-nitrophenyl]-4-(4-piperidinyl)piperazine

Produkt 1

HCID 594528511-[1-(2-Fluoroethyl)-4-piperidinyl]-4-[3-(methyloxy)-4-nitrophenyl]piperazineAusbeute 88 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To 1-[3-(methyloxy)-4-nitrophenyl]-4-(4-piperidinyl)piperazine (Example 89, step D) (0.958 g, 2.99 mmol) and Na2CO3 (0.470 g, 4.43 mmol) in acetonitrile (20 mL) was added iodofluoroethane (0.500 mL, 6.15 mmol) in one portion. The resultant mixture was heated at 70° C. for 48 h. When complete by TLC, the reaction was poured into H2O (150 mL), extracted with DCM and EtOAc, dried (MgSO4) and concentrated. Purification by flash chromatography provided the title compound of step A (0.972 g, 2.63 mmol, 88%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.32-1.43 (m, 2H), 1.70 (d, J=15.0 Hz, 2H), 1.94 (t, J=12.5 Hz, 2H), 2.12-2.21 (m, 1H), 2.50 (t, J=5.0 Hz, 1H), 2.52-2.58 (m, 5H), 2.88 (d, J=10.4 Hz, 2H), 3.35-3.40 (m, 4H), 3.86 (s, 3H), 4.46 (dt, JHF=47.8 Hz, J=4.9 Hz, 2H), 6.47 (d, J=2.4 Hz, 1H), 6.54 (dd, J=9.3, 2.1 Hz, 1H), 7.83 (d, J=9.3 Hz, 1H).

Aufarbeitung

  1. extractionextracted with DCM and EtOAc
  2. dry with materialdried (MgSO4)
  3. concentrationconcentrated
  4. customPurification by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-625ac38fb8c44fa397d1a511973bee31
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08093239B2

Notizen zur Reaktion

Wird geladen…