Asymmetric hydroformylation of styrene by rhodium(I) catalysts with chiral ligands containing sulfur donors

Abstract
Rhodium(I) complexes containing the atropisomeric sulfur ligands 1,1′-binaphthalene-2,2′-dithiol 1(binas) or the relevant dimethyl sulfide 2(Me2binas) are efficient catalysts for the highly regioselective hydroformylation of styrene.