Diastereoselective formation of pyruvylated glycosides from partly protected sugars and methyl pyruvate
作者:Thomas Ziegler、Elisabeth Eckhardt、Gerhard Herold
DOI:10.1016/s0040-4039(00)60097-7
日期:1992.7
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 diastereoselectivity.
各种部分受保护的糖(葡萄糖基,甘露糖苷和半乳糖吡喃糖苷)以丙酮酸甲酯缩醛化,并以BF 3-醚酸酯为缩合试剂。因此,获得了(1-甲氧基羰基)亚乙基糖苷的非对映选择性。