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Communication | Regular issue | Vol 71, No. 3, 2007, pp.517-522
Published online, 15th January, 2007
DOI: 10.3987/COM-06-10965
The First Chemical Synthesis of 6-Thio-D-fructopyranose via Methyl 6-Bromo-6-deoxy-1,3-O-isopropylidene-α-D-fructofuranoside as a Key Intermediate

Tadashi Hanaya,* Nobuaki Sato, and Hiroshi Yamamoto

*Department of Chemistry, Faculty of Science, Okayama University, Tsushima-naka, Okayama 700-8530, Japan.


Selective bromination of sucrose, followed by acetalation with 2,2-dimethoxypropane in 1,4-dioxane in the presence of p-toluenesulfonic acid, afforded methyl 6-bromo-6-deoxy-1,3-O-isopropylidene-α-D-fructofuranoside (4). The first chemical synthesis of 6-thio-D-fructopyranose was accomplished from 4 through its 6-S-acetyl-6-thio derivative.