HCID 14078470, Verbindung → 4-Methoxybenzaldehyde

HRID 1030735Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1030735
O[C:2]1[C:7](CC=C(C)C)=[C:6]([O:13][CH3:14])[CH:5]=[CH:4][C:3]=1[C:15](=[O:17])C>C(O)C>[CH:15](=[O:17])[C:3]1[CH:2]=[CH:7][C:6]([O:13][CH3:14])=[CH:5][CH:4]=1

Komponenten

3

Edukt 1

HCID 14078470HCID 14078470, Verbindung

Produkt 1

HCID 312444-Methoxybenzaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

In 5 ml of ethanol were dissolved 0.48 g of 2'-hydroxy-4'-methoxy-3'-(3-methyl-2-butenyl)acetophenone obtained in production Example 9 and 0.35 ml of p-anisaldehyde. The solution was cooled to 0° C. and 7.5 ml of a saturated ethanol solution of potassium hydroxide was added to the solution, and the mixture was stirred at 0° C for 30 minutes and at room temperature for 4 days. After the reaction, 3N hydrochloric acid was added to the reaction liquid under cooling to gradually make the liquid acidic, and the formed precipitate was recovered by filtration and recrystallized from methanol to obtain 0.47 g (yield=64.7%) of 2'-hydroxy-4,4'-dimethoxy-3'-(3-methyl-2-butenyl)chalcone in the form of a yellow needle.

Quellen und Nachweise

ORD-Eintrag
ord-49ce5b3fc9b541c1a0cbdb372179414d
Quelldatensatz
uspto-grants-1992_04
Patentnummer
US05106871

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