Methyl isoeugenol → 1,2-Dimethoxy-4-propylbenzene

HRID 704000

Reaktionsgleichung

Reaktionsgleichung von HRID 704000
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([CH:9]=[CH:10][CH3:11])=[CH:5][C:4]=1[O:12][CH3:13].[H][H]>[Pd].CO>[CH2:9]([C:6]1[CH:5]=[C:4]([O:12][CH3:13])[C:3]([O:2][CH3:1])=[CH:8][CH:7]=1)[CH2:10][CH3:11]

Komponenten

5

Edukt 2

HCID 7128Methyl isoeugenolHCID 178418361HCID 178418361, Verbindung

Produkt 1

HCID 1232331,2-Dimethoxy-4-propylbenzeneAusbeute 97,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

An atmospheric pressure hydrogenation equipment was charged with 17.8 g (0.10 M) of 1,2-dimethoxy-4-propenylbenzene, 0.9 g of palladium charcoal and 350 ml of methanol and introduced with hydrogen. The reaction was continued until the absorption of hydrogen was terminated. Palladium charcoal was filtered off from the reaction mixture. The filtrate was distilled off methanol and vacuum distilled to obtain 17.5 g (0.097 M) of 4-propylveratrole as colorless transparent liquid having a boiling point of 106°-108° C./4 mmHg.

Aufarbeitung

  1. customThe reaction was continued until the absorption of hydrogen
  2. customwas terminated
  3. filtrationPalladium charcoal was filtered off from the reaction mixture
  4. distillationThe filtrate was distilled off methanol and vacuum
  5. distillationdistilled

Quellen und Nachweise

ORD-Eintrag
ord-403b7e4fe4dd478fa644cd46e92ab690
Quelldatensatz
uspto-grants-1991_01
Patentnummer
US04985458

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