Copper-Catalyzed Anomeric O-Arylation of Carbohydrate Derivatives at Room Temperature
作者:Tristan Verdelet、Sara Benmahdjoub、Belkacem Benmerad、Mouad Alami、Samir Messaoudi
DOI:10.1021/acs.joc.9b01218
日期:2019.7.19
Direct and practical anomeric O-arylation of sugar lactols with substituted arylboronic acids has been established. Using copper catalysis at room temperature under an air atmosphere, the protocol proved to be general, and a variety of aryl O-glycosides have been prepared in good to excellent yields. Furthermore, this approach was extended successfully to unprotected carbohydrates, including α-mannose
已经建立了糖乳醇与取代的芳基硼酸的直接和实用的异头O-芳基化。在室温,空气气氛下使用铜催化,证明该方案是通用的,并且已经以良好至优异的产率制备了各种芳基O-糖苷。此外,该方法已成功地扩展到未保护的碳水化合物(包括α-甘露糖),并在此证明了碳水化合物和硼酸之间的相互作用如何与铜催化结合以实现选择性的异头O-芳基化。