Regioselective Synthesis of Unsymmetrical <i>C</i>-Aryl Glycosides Using Silicon Tethers as Disposable Linkers
作者:David E. Kaelin、Steven M. Sparks、Hilary R. Plake、Stephen F. Martin
DOI:10.1021/ja0375582
日期:2003.10.1
regiochemistry of Diels-Alderreactions between substituted benzynes and glycosyl furans as a key step in the syntheses of unsymmetrical representatives of three major groups of C-aryl glycosides. The cycloaddition precursors were readily prepared by O-alkylation of substituted phenols with various sugar-substituted furylsilane derivatives. Selective deprotonation on the benzene ring of these ethers led to a