Yong Sarah; Williams Morwenna; Pyne Stephen; Ung Alison; Skelton Brian; White Allan; Turner Peter
(Pergamon, 2005)
The phosphine-catalyzed [3+2]-cycloaddition of the 2-methylene ?-lactams 4 and 5 and the acrylate 6 with the ylides derived from the ethyl ester, the amide or the chiral camphor sultam derivative of 2-butynoic acid (7a¿c) ...