Ag(<scp>i</scp>)/(<i>S</i>,<i>S</i>)-ip-FOXAP catalyzed diastereo- and enantioselective 1,3-dipolar cycloaddition of azomethine ylides with benzosultam-3-ylidenes
作者:Luzhen Jiao、Guorui Cao、Dawei Teng
DOI:10.1039/d1nj01284c
日期:——
The AgOAc/ip-FOXAP complex catalyzed the highly diastereo- and enantioselective1,3-dipolarcycloaddition of azomethine ylides with benzosultam-3-ylidenes to give a single isomer of the exo-cycloadduct in good yield. For azomethine ylides, the presence of the Cα-substituted group enables its coordination to the silver center, which is of dramatic importance for the asymmetric reaction yield and for