Reaktion #526952

ord-be258f8c352648f8b74763880687011b

Reaktionsgleichung

O=C[C@H](O)[C@@H](O)[C@H](O)CO
xylose
CC(=O)[O-].[Na+]
sodium acetate
CC(=O)OC(C)=O
acetic anhydride
→
CC(=O)OC[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H](C=O)OC(C)=O
Xylose tetraacetate

Edukte

O=C[C@H](O)[C@@H](O)[C@H](O)CO
xylose
CC(=O)[O-].[Na+]
sodium acetate
CC(=O)OC(C)=O
acetic anhydride
—
ice water

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Temperaturto reflux for 1 hour

Vorschrift

First, 50 g of xylose, from Sigma Chemical Company, 12.5 g of sodium acetate (anhydrous) and 200 ml of acetic anhydride were heated to reflux for 1 hour and poured into 1 L of ice water. Xylose tetraacetate was isolated by filtration and recrystallized from 95% ethanol to yield 56.75 g (54%).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05516792uspto-grants-1996_05