BUCKLEY, B.R. and NEARY, S.P., 2010. Thiadiazolidine 1-oxide systems for phosphine-free palladium-mediated catalysis. Tetrahedron, 66 (40), pp. 7988 - 7994.
We herein report several highly active catalyst systems with thiadiazolidine 1-oxides as ligands for palladium in the Mizoroki–Heck reaction. Excellent yields of stilbenes derived from aryl iodides and bromides have been achieved using as little as 0.00002 mol % catalyst. The ligand/palladium system can be stored as a stock solution open to air at room temperature with no observable loss of activity for a period of several months.