Sodium Bicarbonate → 8-Hydroxy-10,10-dimethyl-10H-11-oxa-4-aza-benzo[b]fluoren-5-one

HRID 2275282Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2275282
C[O:2][C:3]1[CH:4]=[CH:5][C:6]2[C:18](=[O:19])[C:17]3[C:16]4[N:15]=[CH:14][CH:13]=[CH:12][C:11]=4[O:10][C:9]=3[C:8]([CH3:21])([CH3:20])[C:7]=2[CH:22]=1.Cl.N1C=CC=CC=1.C(=O)(O)[O-].[Na+]>O>[OH:2][C:3]1[CH:4]=[CH:5][C:6]2[C:18](=[O:19])[C:17]3[C:16]4[N:15]=[CH:14][CH:13]=[CH:12][C:11]=4[O:10][C:9]=3[C:8]([CH3:20])([CH3:21])[C:7]=2[CH:22]=1

Komponenten

5

Edukt 3

HCID 516892Sodium BicarbonateHCID 10176127Pyridinium chlorideHCID 668342278-Methoxy-10,10-dimethyl-10H-11-oxa-4-aza-benzo[b]fluoren-5-one

Produkt 1

HCID 668350828-Hydroxy-10,10-dimethyl-10H-11-oxa-4-aza-benzo[b]fluoren-5-oneAusbeute 54,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
178 °C

Versuchsvorschrift

Mixture of 8-methoxy-10,10-dimethyl-10H-11-oxa-4-aza-benzo[b]fluoren-5-one (Compound GT15-4, 25 mg) and pyridine hydrochloric acid salt (492 mg) was stirred and heated at 178° C. overnight. The reaction mixture was cooled, and added with water. The mixture was neutralized with saturated aqueous solution of sodium bicarbonate and extracted with DCM. The organic layer was washed with saturated brine, and then concentrated under reduced pressure. The resulting residues were purified by silica gel column (DCM/MeOH) to obtain the title compound (13 mg, 54%).

Aufarbeitung

  1. temperatureThe reaction mixture was cooled
  2. extractionextracted with DCM
  3. washThe organic layer was washed with saturated brine
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residues were purified by silica gel column (DCM/MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-8590ae20e2d7476e80c47dbd6fbf7e2f
Quelldatensatz
uspto-grants-2015_09
Patentnummer
US09126931B2

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