Catalytic and highly stereoselective β-mannopyranosylation using a 2,6-lactone-bridged mannopyranosyl ortho-hexynylbenzoate as donor
作者:Yingle Feng、Jie Yang、Chenglin Cai、Taotao Sun、Qi Zhang、Yonghai Chai
DOI:10.1016/j.cclet.2022.02.071
日期:2022.11
An efficient and catalytic protocol for highly stereoselective construction of β-mannopyranosylation has been developed. Glycosylation of 2,6-lactone-bridged mannopyranosyl ortho-hexynylbenzoate with various acceptors proceeded smoothly in the presence of 5% Hg(II) at room temperature, resulting in the corresponding β-mannosides in high yield and exclusive β-stereoselectivity.
已经开发了一种用于高度立体选择性构建β-吡喃甘露聚糖基化的高效催化方案。在室温下,5% Hg(II) 存在下,2,6-内酯桥接甘露糖基邻-己炔基苯甲酸酯与各种受体的糖基化反应顺利进行,从而以高产率和独特的β-立体选择性生成相应的β-甘露糖苷。