Organocatalytic Asymmetric Mannich/Aza-Michael Cascade Reaction of δ-Formyl-α,β-unsaturated Ketones with Cyclic <i>N</i>-Sulfimines: Enantioselective Synthesis of Benzosulfamidate-Fused Pyrrolidines
作者:Hanna Kim、Yerin Kim、Sung-Gon Kim
DOI:10.1021/acs.joc.7b01533
日期:2017.8.4
A catalytic highly enantioselectiveMannich/aza-Michael cascade reaction of δ-formyl-α,β-unsaturated ketones with cyclic N-sulfimines, promoted by diphenylprolinol TMS ether as an organocatalyst, has been developed for the synthesis of chiral benzosulfamidate-fused pyrrolidines, which generated in good yields and with high diastero- and enantioselectivities. Further chemical transformations have been