Potassium Carbonate → 77-LH-28-1

HRID 1986811Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1986811
C([O-])([O-])=O.[K+].[K+].[CH2:7]([CH:11]1[CH2:16][CH2:15][NH:14][CH2:13][CH2:12]1)[CH2:8][CH2:9][CH3:10].Cl[CH2:18][CH2:19][CH2:20][N:21]1[C:30]2[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=2)[CH2:24][CH2:23][C:22]1=[O:31]>C(#N)C>[CH2:7]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:18][CH2:19][CH2:20][N:21]2[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[CH2:24][CH2:23][C:22]2=[O:31])[CH2:13][CH2:12]1)[CH2:8][CH2:9][CH3:10]

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 132838674-ButylpiperidineHCID 16782057HCID 16782057, Verbindung

Produkt 1

HCID 1023675877-LH-28-1

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A suspension of NaH in mineral oil (55-60%) (712 mg) was added to a solution of 3,4-dihydro-1H-quinolin-2-one (2.0 g, 13.6 mmol) in N,N-dimethylformamide (50 mL) at 0° C. The reaction mixture was stirred at 0° C. for 1 h. then 1-bromo-3-chloropropane (1.34 mL, 13.6 mmol) was added. The slurry was stirred for additional 16 h. at ambient temperature then water (50 mL) was added and the product was extracted with diethyl ether (2×50 mL). The organic layer was dried (Na2SO4) and concentrated in vacuo. The product was purified by flash-chromatography (eluent: dichloromethane) to give 1-[3-chloropropyl]-3,4-dihydro-1H-quinolin-2-one (2.41 g, 10.8 mmol). KI (2.5 g, 15 mmol), K2CO3 (2.1 g, 15 mmol) and 4-butylpiperidine (1.8 mL, 15 mmol) were added to a solution of 1-[3-chloropropyl]-3,4-dihydro-1H-quinolin-2-one (2.41 g, 10.8 mmol) in acetonitrile (50 mL). The reaction mixture was stirred at 60° C. for 16 h. The acetonitrile was evaporated in vacuo, water (50 mL) was added and the product was extracted with ethyl acetate (2×50 mL). The organic layer was dried (Na2SO4), filtered and concentrated in vacuo. Purification by flash-chromatography (eluent: ethyl acetate) gave the title product. Yield: 2.06 g, 58%. Oxalate-salt was prepared from oxalic acid (1.1 eq.) in acetone. HPLC-MS: M+1+=329.5 (UV/MS (%)=100/100). 1H NMR (400 MHz, CD3OD): δ=0.89 (3H, t), 1.12-1.36 (9H, m), 1.67 (2H, broad d), 1.83 (2H, quin.), 1.97 (2H, broad t), 2.41 (2H, t), 2.59 (2H, t), 2.84-2.96 (4H, m), 3.99 (2H, t), 7.02 (1H, broad t), 7.16 (1H, broad d), 7.20 (1H, broad d), 7.25 (1H, broad t). 13C NMR (CD3OD): d 13.2, 22.8, 24.3, 25.0, 28.9, 31.6, 31.9 (2C), 35.6, 36.2, 40.1, 53.8 (2C), 55.9, 115,2, 123.2, 127.0, 127.4, 127.9, 139.1, 171.5 1-[3-(4-Butyl-piperidin-1-yl)-propyl]-6-methoxy-3,4-dihydro-1H-quinolin-2-one (77-LH-22A)

Aufarbeitung

  1. customThe acetonitrile was evaporated in vacuo, water (50 mL)
  2. additionwas added
  3. extractionthe product was extracted with ethyl acetate (2×50 mL)
  4. dry with materialThe organic layer was dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by flash-chromatography (eluent: ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-41070e9b6dd845dc8fb4905f79d41dfd
Quelldatensatz
uspto-grants-2009_06
Patentnummer
US07550459B2

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