Tetrafluoroboric acid → HCID 12398449, Verbindung

HRID 616877

Reaktionsgleichung

Reaktionsgleichung von HRID 616877
N[C:2]1[C:9]([O:10][CH3:11])=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][C:3]=1[O:12][CH3:13].[H+].[B-](F)(F)(F)[F:16].N([O-])=O.[Na+]>O>[CH3:13][O:12][C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([O:10][CH3:11])[C:2]=1[F:16])[CH:6]=[O:7]

Komponenten

5

Edukt 3

HCID 28118Tetrafluoroboric acidHCID 200429634-Amino-3,5-dimethoxybenzaldehydeHCID 23668193Sodium Nitrite

Produkt 1

HCID 12398449HCID 12398449, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A solution of 1.4 g. of 4-amino-3,5-dimethoxybenzaldehyde in 20 ml. of 50% hydrogen tetrafluoroborate was diazotized at 0° C. with a solution of 0.59 g. of sodium nitrite in about 2 ml. of water. After irradiation with a low pressure mercury lamp (Hanau NK 6620) for 6 hours at room temperature, the solution was extracted with ether, the ether extracts dried over magnesium sulfate and concentrated. After recrystallization from heptane, the residue produced 3,5-dimethoxy-4-fluoro-benzaldehyde of melting point 97°-98° C.

Aufarbeitung

  1. customwas diazotized at 0° C. with a solution of 0.59 g
  2. customAfter irradiation with a low pressure mercury lamp (Hanau NK 6620) for 6 hours at room temperature
  3. extractionthe solution was extracted with ether
  4. dry with materialthe ether extracts dried over magnesium sulfate
  5. concentrationconcentrated
  6. customAfter recrystallization from heptane

Quellen und Nachweise

ORD-Eintrag
ord-3e11685ebb1d4773be60d8b48510e0fe
Quelldatensatz
uspto-grants-1978_02
Patentnummer
US04076810

Verknüpfte Notizen

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