Hydrogen Bromide → 2,3,4-Tri-O-Acetyl-6-Deoxy-alpha-D-Glucopyranosyl Bromide

Temperatur

0 °C

In a 10 mL round bottom flask containing 10 mL of glacial acetic acid was placed 6-deoxyglucose (332.3 mg) and the reaction was cooled to 0° C. Hydrobromic acid in glacial acetic acid (5 mL of a 30 wt. % solution) was added dropwise. The reaction was stirred for 4 hours. The reaction was diluted with 100 mL of dichloromethane and washed with 50 mL ice water and then 50 mL of cold saturated aqueous sodium bicarbonate. The organic layer was dried over magnesium sulfate and filtered. The solvent was removed in vacuo to yield the title compound as a yellow solid (636.5 mg, 85.4%) and the product was used without further purification as in Example 1. MS (FAB) calculated for C12H17O7Br (M−Br) 273.1, found 273.1.

1. washwashed with 50 mL ice water
2. dry with materialThe organic layer was dried over magnesium sulfate
3. filtrationfiltered
4. customThe solvent was removed in vacuo

ORD-Eintrag

ord-da861d3f276d4fffaed66d8205cdf948

Quelldatensatz

uspto-grants-2003_12

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US06670324B2