Direct precursors to analogues of pentopyranoses, 6-deoxyhexoses, and hexoses, in which a CF2 center replaces the pyranose oxygen, have been synthesized rapidly from trifluoroethanol. A simple scaleable allylation reaction delivers ethers which undergo dehydrofluorination/metalation, followed by addition to either acrolein or cinnamaldehyde, to afford allylic alcohols. Fluorine-assisted [3, 3]-rearrangement followed by reduction with ...
[Omotowa, Bamidele A.; Keefer, Keith D.; Kirchmeier, Robert L.; Shreeve, Jean'ne M. Journal of the American Chemical Society, 1999 , vol. 121, # 48 p. 11130 - 11138]