Routes to C-Glycopyranosides via Sigmatropic Rearrangements

Article abstract of DOI:10.1021/jo00177a026

Claisen rearrangements have been applied to 1,5-anhydro-4,6-O-benzylidene-1,2-dideoxy-D-ribo-hex-1-enitol (1).The classical procedure succeeds, but the overall process is unsatisfactory because of the low conversion to the vinyl ether intermediate.Best re