Atom-Economic Synthesis of Unsymmetrical <i>gem</i>-Diarylmethylthio/Seleno Glycosides via Base Mediated C(O)–S/Se Bond Cleavage and Acyl Transfer Approach of Glycosylthio/Selenoacetates
作者:Zanjila Azeem、Pintu Kumar Mandal
DOI:10.1021/acs.joc.2c02704
日期:2023.2.3
atom economic method that streamlines the scission of the C(O)–S/Se bond involving the in situ generation of an anomeric thiolate/selenolate anion, which reacted with p-QMs to yield novel unsymmetrical gem-diarylmethylthio/seleno glycosides while retaining the anomeric stereochemistry. Notably, the key features of this protocol involve unprecedented long-range acyl transfer (from S/Se to O), thus affording