Secondary Phosphane Oxides as Preligands in Rhodium-Catalyzed Hydroformylation (pages 1278–1285)
Dr. Andrea Christiansen, Dr. Chuanzhao Li, Dr. Marc Garland, Dr. Detlef Selent, Prof. Dr. Ralf Ludwig, Dr. Robert Franke and Prof. Dr. Armin Börner
Article first published online: 16 AUG 2010 | DOI: 10.1002/cctc.201000114
SPOs it's a ligand: Aryl-substituted secondary phosphane oxides (SPOs) have been successfully tested as preligands in rhodium-catalyzed hydroformylation, forming active hydroformylation catalysts through their phosphinous acid tautomers. Furthermore, proof is given that noncoordinated SPOs readily react with product aldehydes to form α-hydroxyphosphinic acids.