作者:Ziyi Han、Zhiwei Zheng、Li Cai、Dandan Zhou、Changsheng Li、Qiang Sui、Shuai Liu、Qi Gao
DOI:10.1016/j.tetlet.2018.09.008
日期:2018.10
The Mitsunobu reaction of flavonoids and 3,4,6-tri-O-acetyl-2-deoxy-d-glucopyranose or 3,4,6-tri-O-benzyl-2-deoxy-d-glucopyranose is a very effective method for the stereoselective synthesis of flavonoid 2-deoxyglucosides. Since there is no C2 substituent on the sugar moieties, the observed α- or β-stereoselectivity was mainly controlled by the (acetyl or benzyl) protecting groups. Possible mechanistic
黄酮类化合物和3,4,6-三-的Mitsunobu反应Ô -乙酰基-2-脱氧d -glucopyranose或3,4,6-三- ø -苄基-2-脱氧d -glucopyranose是一种非常有效的方法用于类黄酮2-脱氧葡萄糖苷的立体选择性合成。由于在糖部分上没有C2取代基,因此观察到的α-或β-立体选择性主要受(乙酰基或苄基)保护基控制。提供可能的机理见解来解释双重立体选择性。