Diastereoselective formation of pyruvylated glycosides from partly protected sugars and methyl pyruvate

Article abstract of DOI:10.1016/S0040-4039(00)60097-7

Various partly protected sugars (gluco-, manno-, and galactopyranosides) were acetalized with methyl pyruvate in moderate to good yield with BF₃-etherate as the condensing reagent. Thus, (1-methoxycarbonyl)ethylidene glycosides were obtained di