Reaktion #1868449

Reaktionsgleichung

2,3,4-tri-O-benzyl-xylopyranose

DMF

oxayl bromide

→

title compound

2,3,4-tri-O-benzyl-xylopyranosyl bromide

Lösungsmittel

dichloromethane

dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   Waschenwashed with water (2×250 mL)
2. 2
   Trocknendried over Na2SO4
3. 3
   Filtrationfiltered
4. 4
   Sonstigeevaporated

Vorschrift

2,3,4-tri-O-benzyl-xylopyranose was dissolved in dry dichloromethane (50 mL) and dry DMF (3.0 mL) was added. The reaction mixture was cooled at 0° C. and added dropwise oxayl bromide (1.4 mL). The reaction mixture was stirred for 1 hour at 0° to 5° C. and then diluted with dichloromethane (250 mL), washed with water (2×250 mL), dried over Na2SO4, filtered and evaporated to provide the title compound. The yield was quantitative for this step.

Quelle