(3-Bromopropyl)benzene → tert-Butyl 9,10-dichloro-6-(3-phenylpropyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

HRID 2306998Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2306998
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH2:11][CH2:12][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:14][CH2:15][C:5]=3[C:4]=2[C:3]=1[Cl:23].[H-].[Na+].Br[CH2:27][CH2:28][CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1>CN(C=O)C>[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([CH2:27][CH2:28][CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[C:6]3[CH2:11][CH2:12][N:13]([C:16]([O:18][C:19]([CH3:20])([CH3:22])[CH3:21])=[O:17])[CH2:14][CH2:15][C:5]=3[C:4]=2[C:3]=1[Cl:23]

Komponenten

5

Edukt 3

HCID 12503(3-Bromopropyl)benzeneHCID 24758Sodium hydrideHCID 22396855tert-butyl 9,10-dichloro-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

Produkt 1

HCID 22396731tert-Butyl 9,10-dichloro-6-(3-phenylpropyl)-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylateAusbeute 63,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of tert-butyl 9,10-dichloro-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.40 g, 1.1 mmol) in DMF (6 mL), sodium hydride (60% dispersion in mineral oil, 68 mg, 1.7 mmol) was added. After 25 min, 1-bromo-3-phenyl propane (0.34 mL, 2.3 mmol) was added. The reaction was quenched with saturated aqueous NH4Cl after 3 h and extracted with EtOAc (3×15 mL). The combined organic extracts were washed with brine, dried over Na2SO4, decanted, and concentrated. The crude product was purified by column chromatography (Biotage, 40M) with heptane/EtOAc (17:3) to give 0.33 g (62%) of a yellow solid: mp 113.5-115.5° C.; 1H NMR (300 MHz, CDCl3) δ 7.14 (m, 3H), 6.93 (d, J=8.7 Hz, 1H), 4.02 (m, 2H), 3.70 (m, 4H), 3.50 (m, 2H), 2.93 (m, 2H), 2.65 (t, J=7.5 Hz, 2H), 1.99 (m, 2H), 1.48 (s, 9H); IR (diffuse reflectance) 2976, 1686, 1447, 1416, 1366, 1360, 1247, 1180, 1168, 1152, 1108, 930, 788, 747, 701 cm−1; MS (FAB) m/z 473 (M+H+), 475, 474, 473, 472, 419, 418, 417, 416, 91, 57; HRMS (FAB) calcd for C26H30Cl2N2O2+H 473.1762, found 473.1759; Anal. Calcd for C26H30Cl2N2O2: C, 65.96; H, 6.39; N, 5.92, found: C, 66.00; H, 6.41; N, 5.85.

Aufarbeitung

  1. customThe reaction was quenched with saturated aqueous NH4Cl after 3 h
  2. extractionextracted with EtOAc (3×15 mL)
  3. washThe combined organic extracts were washed with brine
  4. dry with materialdried over Na2SO4
  5. customdecanted
  6. concentrationconcentrated
  7. customThe crude product was purified by column chromatography (Biotage, 40M) with heptane/EtOAc (17:3)

Quellen und Nachweise

ORD-Eintrag
ord-0364b62eb3704dc38b5902cae28f779d
Quelldatensatz
uspto-grants-2004_12
Patentnummer
US06828314B2

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