WL Yang, FF Tang, FS He, CY Li, X Yu, WP Deng - Organic letters, 2015 - ACS Publications
A highly efficient asymmetric 1, 3-dipolar cycloaddition of azomethine ylides to 5-alkylidene
thia (oxa) zolidine-2, 4-diones catalyzed by a chiral N, O-ligand/Cu (CH3CN) 4BF4 system is …