Triethylamine → HCID 59699661, Verbindung

HRID 901292Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 901292
C(N(CC)CC)C.[CH2:8]([N:15]1[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][N:23]=2)[C:18](O)=[C:17]([S:26]([CH3:29])(=[O:28])=[O:27])[C:16]1=[O:30])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.O=P(Cl)(Cl)[Cl:33]>>[CH2:8]([N:15]1[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][N:23]=2)[C:18]([Cl:33])=[C:17]([S:26]([CH3:29])(=[O:28])=[O:27])[C:16]1=[O:30])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

Komponenten

4

Edukt 3

HCID 8471TriethylamineHCID 24813Phosphorus oxychlorideHCID 59699592HCID 59699592, Verbindung

Produkt 1

HCID 59699661HCID 59699661, Verbindung

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

Triethylamine (1.2 mL, 8.6 mmol) was added to a suspension of 1-benzyl-4-hydroxy-3-(methylsulfonyl)-[1,8]-naphthyridin-2(1H)-one (114) (0.94 g, 2.9 mmol) in neat POCl3 and heated at 90° C. for 3 h. The solution was cooled and the excess POCl3 was distilled under vacuum. The residue was suspended in water, neutralized by solid NaHCO3, and extracted by dichloromethane. The organic layer was subsequently washed by saturated NaHCO3 solution, water and brine, dried over Na2SO4, and evaporated to yield 1-benzyl-4-chloro-3-(methylsulfonyl)-[1,8]-naphthyridin-2(1H)-one (115) as yellow solid. Yield 0.92 g (92%), mp 191° C. 1H-NMR (DMSO-d6): δ 3.50 (s, 3H), 5.65 (s, 2H), 7.28 (m, 5H), 7.55 (m, 1H), 8.70 (dd, J=1.6, 8.4 Hz, 1H), 8.84 (dd, J=1.6, 4.4 Hz, 1H); EIMS m/z 349 (M+1).

Aufarbeitung

  1. temperatureThe solution was cooled
  2. distillationthe excess POCl3 was distilled under vacuum
  3. extractionextracted by dichloromethane
  4. washThe organic layer was subsequently washed by saturated NaHCO3 solution, water and brine
  5. dry with materialdried over Na2SO4
  6. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-130a248aa3944a16b8d1889dfa2229e5
Quelldatensatz
uspto-grants-2008_04
Patentnummer
US07361760B2

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