Ethyl Acetate → 5-Bromo-6-isoquinolinol

HRID 2370717Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2370717
[Br:1]Br.[OH:3][C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][CH:13]=1)[CH:10]=[N:9][CH:8]=[CH:7]2.C(OCC)(=O)C>C(Cl)(Cl)Cl>[Br:1][C:5]1[C:4]([OH:3])=[CH:13][CH:12]=[C:11]2[C:6]=1[CH:7]=[CH:8][N:9]=[CH:10]2

Komponenten

5

Edukt 3

HCID 8857Ethyl AcetateHCID 24408BromineHCID 135483582Isoquinolin-6-ol

Produkt 1

HCID 1360928955-Bromo-6-isoquinolinolAusbeute 88,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6212ChloroformLösungsmittel

Versuchsvorschrift

7.9 mL (19.18 g, 120 mmol) of bromine were added dropwise to a suspension of 17.42 g (120 mmol) of 6-hydroxy isoquinoline in 250 mL of chloroform at room temperature. After stirring for 2 h, ethyl acetate was added. The precipitate was filtered, washed with ethyl acetate and dried. Aqueous NaHCO3 solution was added carefully. The precipitate was filtered and washed with NaHCO3 solution until the filtrate had a pH of 8. Drying gave 23.78 g (88%) of 2 as an off-white solid.

Aufarbeitung

  1. filtrationThe precipitate was filtered
  2. washwashed with ethyl acetate
  3. customdried
  4. additionAqueous NaHCO3 solution was added carefully
  5. filtrationThe precipitate was filtered
  6. washwashed with NaHCO3 solution until the filtrate
  7. customDrying

Quellen und Nachweise

ORD-Eintrag
ord-ffc5ecd8c4a44461b1fc098e8b0f863b
Quelldatensatz
uspto-grants-2014_04
Patentnummer
US08710228B2

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