title: Rh-catalyzed linear hydroformylation of styrene.
abstract: Usually the Rh-catalyzed hydroformylation of styrene predominantly yields the branched, chiral aldehyde. An inversion of regioselectivity can be achieved using strong π-acceptor ligands. Binaphthol-based diphosphite and bis(dipyrrolyl-phosphorodiamidite) ligands were applied in the Rh-catalyzed hydroformylation of styrene. High selectivities up to 83% of 3-phenylpropanal were obtained with 1,1-bi-2-naphthol-based bis(dipyrrolyl-phosphorodiamidite) with virtually no hydrogenation to ethyl benzene. The coordination chemistry of those ligands towards Rh(I) was investigated spectroscopically and structurally.
authors.affiliation: Laboratory of Homogeneous Catalysis, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
authors.forename: Evert
authors.initials: E
authors.lastname: Boymans
authors.forename: Michèle
authors.initials: M
authors.lastname: Janssen
authors.forename: Christian
authors.initials: C
authors.lastname: Müller
authors.forename: Martin
authors.initials: M
authors.lastname: Lutz
authors.forename: Dieter
authors.initials: D
authors.lastname: Vogt
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D002384:Catalysis; D008024:Ligands; D008968:Molecular Conformation; D009284:Naphthols; D012238:Rhodium / Q000737:chemistry*; D013237:Stereoisomerism; D020058:Styrene / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D008024:Ligands; D009284:Naphthols; D020058:Styrene; D012238:Rhodium; C421487:3-phenylpropanal