Preparation ofP,N-Heterodifunctional Ferrocene-Coordinating Ligands by Selective Functionalization of Polyphosphanes by the Staudinger Reaction – Crystal and Molecular Structure of a New Cyclometallaphosphoraniminophosphane of Palladium(II)

Hydroaminomethylation of Styrene with Morpholine catalysed by a Rhodium Complex with a Phosphino Amino Alcohol Ligand

“…The increased catalytic activity of some complexes by the use of P,N-bidentate ligands is well known. 3 Rhodium complex 1 for instance, the synthesis and characterization of which were reported in a previous paper, showed such activity in hydroformylation of styrene. 4 The presence of the uncoordinated hydroxy group lowers the rate of hydroformylation with no in£uence on the regioselectivity of the reaction.…”

3-Ferrocenylprop-2-enal

“…Several ,-unsaturated ferrocene derivatives, in which neither the C C double bond nor the C X (X = O and N) double bond is part of a cyclic system, may be found in the Cambridge Structural Database (Version 5.24;Allen, 2002). Most of them are derivatives of ferrocenylacrylic acid (Skrzypczak-Jankun et al, 1980;Tao et al, 2001;Molina et al, 1996Molina et al, , 1997Molina et al, , 1998Rongjun et al, 1991;Zhu, 1993) or of 3-ferrocenylpropenones (Woisetschlager et al, 1999;Erasmus et al, 1996;Constable et al, 1994Constable et al, , 1995. Only one ,-unsaturated ferrocenylcarbaldehyde has been structurally characterized up to now, namely 3-chloro-3-ferrocenylpropenal (Schottenberger et al, 2001).…”

Recent Developments on Hemilabile P,O-Type Ligands in Cross-Coupling Reactions

“…The different features associated with the donor atoms provide their metal complexes with unique reactivity (Figure 2). 12, 13 The hard donor atom end weakly coordinates to soft metal centers (e.g., Pd and Rh) and easily dissociates in solution to afford a vacant site whenever demanded. 14,15 The vastly different electronic and steric characteristics of the phosphorus and oxygen donors, coupled with tunable aryl or ferrocenyl backbones, make these systems attractive and potentially versatile hemilabile ligands.…”