Flavanone → 7-Bromo-2-phenyl-chromen-4-one

HRID 612537

Reaktionsgleichung

Reaktionsgleichung von HRID 612537
[Br:1]Br.[O:3]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:6](=[O:7])[CH2:5][CH:4]1[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.BrBr.O1C2C(=CC=CC=2)C(=O)CC1C1C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[Br:1][C:11]1[CH:12]=[C:13]2[C:8]([C:6](=[O:7])[CH:5]=[C:4]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[O:3]2)=[CH:9][CH:10]=1

Komponenten

5

Edukt 3

HCID 10251FlavanoneHCID 24408BromineHCID 131720663Bromine flavanone

Produkt 1

HCID 4662777-Bromo-2-phenyl-chromen-4-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 5943Carbon TetrachlorideLösungsmittel

Reaktionsbedingungen

Temperatur
30 °C

Versuchsvorschrift

Bromine was added to a solution of flavanone in carbon tetrachloride at 0° C. The ratio of bromine/flavanone was 1.3 in molar terms. The temperature of the solution was raised to 30° C. and kept there for 1 hour. The temperature of the solution was then raised to 65° C. and kept there for 45 minutes.

Aufarbeitung

  1. temperatureThe temperature of the solution was then raised to 65° C.
  2. waitkept there for 45 minutes

Quellen und Nachweise

ORD-Eintrag
ord-8f8fbff266e54dc89d8eebb69d057c16
Quelldatensatz
uspto-grants-1999_12
Patentnummer
US06004998

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