1, 2‐
<i>trans</i>
‐Stereoselective 7‐
<i>O</i>
‐Glycosylation of Flavonoids with Unprotected Pyranoses by Mitsunobu Reaction
作者:Hailong Shi、Jian Yang、Yao Cheng、Jinlian Yang、Xiaoxia Lu、Xiaofeng Ma
DOI:10.1002/asia.202200120
日期:2022.5.2
employed to enable the synthesis of flavonoid O-glycosidesunder mild and neutralconditions. The protocol afforded a wide range of flavonoids including natural products and their analogues in good to excellent yields with high 1,2-trans-stereoselectivity. The methodology was also applicable to highly regioselective glycosylation among different hydroxyl groups on the glycosyl acceptor.