Sodium Hydroxide → 10-bromo-5-carboxy-2-methoxy-4H-pyrido[3,2,1-jk]carbazole-4-one

HRID 1530982Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1530982
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]3[CH:19]=[C:18]([C:20]([O:22]CC)=[O:21])[C:17](=[O:25])[C:8]4[CH:9]=[C:10]([O:15][CH3:16])[CH:11]=[C:12]([C:13]=2[CH:14]=1)[C:7]3=4.[OH-].[Na+]>C(O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]3[CH:19]=[C:18]([C:20]([OH:22])=[O:21])[C:17](=[O:25])[C:8]4[CH:9]=[C:10]([O:15][CH3:16])[CH:11]=[C:12]([C:13]=2[CH:14]=1)[C:7]3=4

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 2125285710-bromo-5-ethoxycarbonyl-2-methoxy-4H-pyrido [3,2,1-jk]carbazole-4-one

Produkt 1

HCID 2125282410-bromo-5-carboxy-2-methoxy-4H-pyrido[3,2,1-jk]carbazole-4-oneAusbeute 83,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

10-bromo-5-ethoxycarbonyl-2-methoxy-4H-pyrido[3,2,1-jk]carbazole-4-one (400 mg) obtained in Example 98 was suspended in ethanol (10 ml), and 1N sodium hydroxide (3 ml) was added. The mixture was stirred at room temperature for 12 hours, and the solvent was evaporated under reduced pressure. To tne residue was added IN hydrochloric acid to pH 1, and the crystals precipitated were recovered by filtration, and washed with ethanol and ether to obtain the title compound (310 mg, 83%).

Aufarbeitung

  1. customthe solvent was evaporated under reduced pressure
  2. additionTo tne residue was added IN hydrochloric acid to pH 1
  3. customthe crystals precipitated
  4. filtrationwere recovered by filtration
  5. washwashed with ethanol and ether

Quellen und Nachweise

ORD-Eintrag
ord-bfb4ac67bb4f447b968cfcccf2e5a4ef
Quelldatensatz
uspto-grants-2001_03
Patentnummer
US06197768B1

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