Abstract
A one-pot C2-acetamidomannosylation reaction for the synthesis of 2- N-acetylamino-2-deoxy-α- d-mannopyranosides from glucals is described. Glucal donors are activated by the reagent combination of 2,8-dimethyldibenzothiophene-5-oxide (DMDBTO) and trifluoromethanesulfonic anhydride. Upon subsequent addition of N-(TMS)acetamide and an appropriate glycosyl acceptor, the corresponding C2-acetamidomannopyranosides are formed.
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