2-Bromoethanol → HCID 86659032, compound

DOWEX 50Wx4 resin (Alfa Aesar, Ward Hill, Mass.) was washed with deionized water to remove color. A mixture of 225 gm D-glucose (1.25 mol; 1 equiv., Alfa Aesar) and 140 gm DOWEX 50Wx4 was treated with 2.2 L 2-bromoethanol (30.5 mol, 25 equiv.; 124.97 gm/mol; 1.762 gm/mL; BP=150 C; Alfa Aesar) and the stirred mixture heated to 80 C for 4 hours. The reaction was monitored by TLC (20% methanol/dichloromethane (DCM)). Reaction was complete after about four hours, and it was allowed to cool to room temperature. The solution was filtered to remove the resin, and the resin washed with ethyl acetate and DCM. The resulting filtrate was stripped to an amber oil in a rotory evaporator to give a total of 400 g after stripping.

1. washwas washed with deionized water
2. customto remove color
3. temperaturethe stirred mixture heated to 80 C for 4 hours
4. customReaction
5. filtrationThe solution was filtered
6. customto remove the resin
7. washthe resin washed with ethyl acetate and DCM
8. customThe resulting filtrate was stripped to an amber oil in a rotory evaporator
9. customto give a total of 400 g after stripping

ORD record

ord-8c586a277c14409dbd858a9a43775e1b

Source dataset

uspto-grants-2013_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08569231B2