Gallic Acid → Octyl Gallate

HRID 65311

Reaktionsgleichung

Reaktionsgleichung von HRID 65311
[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[C:8]([OH:9])[C:6]([OH:7])=[C:4]([OH:5])[CH:3]=1.[CH2:13](O)[CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20].S(=O)(=O)(O)O>O>[C:1]([O:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])(=[O:11])[C:2]1[CH:10]=[C:8]([OH:9])[C:6]([OH:7])=[C:4]([OH:5])[CH:3]=1

Komponenten

5

Edukt 3

HCID 370Gallic AcidHCID 9571-OctanolHCID 1118Sulfuric Acid

Produkt 1

HCID 61253Octyl GallateAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of 30 g of tara (about 0.1 mole of bound gallic acid), 120 g (0.95 mole) of n-octanol and 3 g of anhydrous sulfuric acid was heated at 140° C. for 7 hours with continuous removal of the water of reaction, after which the mixture was washed neutral with water and then evaporated down to give the crude n-octyl gallate in the form of an oil. The purity of the product was 65% and the yield was 75%, calculated as pure ester.

Aufarbeitung

  1. washafter which the mixture was washed neutral with water
  2. customevaporated down

Quellen und Nachweise

ORD-Eintrag
ord-e22881c9711f41c493927cfd24f41066
Quelldatensatz
uspto-grants-1986_09
Patentnummer
US04613683

Verknüpfte Notizen

Wird geladen…