Pure Appl. Chem., 2006, Vol. 78, No. 2, pp. 257-265
http://dx.doi.org/10.1351/pac200678020257
Sulfenylphosphinoferrocenes: Novel planar chiral ligands in enantioselective catalysis
Abstract:
Structurally well-defined transition-metal complexes of 1-phosphino-2-sulfenylferrocene (Fesulphos ligands) act as highly efficient catalysts in a variety of mechanistically different transformations. Excellent enantioselectivities were achieved in Pd-catalyzed allylic substitutions, desymmetrization of meso-heterobicyclic alkenes by Pd-catalyzed addition of dialkylzinc reagents, Pd-catalyzed Diels-Alder reaction of cyclopentadiene with N-acryloyl oxazolidinones, and in Cu-catalyzed formal aza-Diels-Alder reaction of Danishefsky diene to N-sulfonyl aldimines.