Preparation of curcumin, useful in foodstuffs, comprises reacting vanillin with 2,4-pentandione and boron trioxide in the presence of an amine in an inert solvent, removing the solvent, followed by hydrolyzing and separating

Preparation of curcumin, useful in foodstuffs, comprises reacting vanillin with 2,4-pentandione and boron trioxide in the presence of an amine in an inert solvent, removing the solvent, followed by hydrolyzing and separating

Preparation of curcumin (I) comprises reacting vanillin (II) with 2,4-pentandione (III) and boron trioxide in the presence of an amine in an inert solvent; partially removing the solvent; hydrolyzing the received raw product through supplementation of water and separating the received (I) from the a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: WEGNER, CHRISTOPH
Format: Patent
Sprache:eng ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
FOODS OR FOODSTUFFS
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J
HUMAN NECESSITIES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC CHEMISTRY
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT
THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Preparation of curcumin (I) comprises reacting vanillin (II) with 2,4-pentandione (III) and boron trioxide in the presence of an amine in an inert solvent; partially removing the solvent; hydrolyzing the received raw product through supplementation of water and separating the received (I) from the aqueous phase. Preparation of curcumin (I) comprises reacting vanillin with 2,4-pentandione and boron trioxide in the presence of an amine in an inert solvent, partially removing the solvent, hydrolyzing the received raw product through supplementation of water and separating the received (I) from the aqueous phase. Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Curcumin der Formel (I) DOLLAR F1 durch Umsetzung von Vanillin der Formel (II) DOLLAR F2 mit 2,4-Pentandion der Formel (III) DOLLAR F3 und B¶2¶O¶3¶ in Gegenwart eines Amins in einem unter den Reaktionsbedingungen inerten Lösungsmittel, anschließendes zumindest teilweises Entfernen des Lösungsmittels, Hydrolyse des so erhaltenen Rohproduktes durch Zugabe von Wasser und Abtrennung des erhaltenen Curcumins von der wässrigen Phase.