Room-Temperature Pd-Catalyzed Synthesis of 1-(Hetero)aryl Selenoglycosides
作者:Mingxiang Zhu、Mouad Alami、Samir Messaoudi
DOI:10.1021/acs.orglett.0c02352
日期:2020.8.21
A general protocol for functionalization of an anomeric selonate anion at roomtemperature has been reported. By using the PdG3 XantPhos catalyst, the cross-coupling between the in situ-generated glycosyl selenolate and a broad range of (hetero)aryl and alkenyl iodides furnished a series of functionalized selenoglycosides in excellent yields with perfect control of the anomeric configuration.
We described a novel palladium-catalyzed domino procedure for the preparation of (hetero)aryl thio/selenoglycosides. Readily available (hetero)aryl iodides and easily accessible 1-thiosugars/1-selenosugars are utilized as the substrates. Meanwhile, 10 types of sugars are quite compatible with this reaction with good regio- and stereoselectivity, high efficiency, and broad applicability (up to 89%,