0000000000170454
AUTHOR
Patrick H. Toy
Functionalized Tri‐ and Tetraphosphine Ligands as a General Approach for Controlled Implantation of Phosphorus Donors with a High Local Density in Immobilized Molecular Catalysts
Supported phosphine ligands are auxiliaries of topical academic and industrial interest in catalysis promoted by transition metals. However, both controlled implantation and controlled conformation of ligands should be achieved to produce immobilized catalysts that are able to structurally “copy” efficient homogeneous systems. We provide herein a general synthetic strategy for assembling a new class of branched tetra- and triphosphine ligands with a unique controlled rigid conformation, and thus providing a high local density of phosphorus atoms for extended coordination to the metal center. We prepared new functionalized cyclopentadienyl (Cp) salts to design polyphosphines that were “ready…
Modular functionalized polyphosphines for supported materials: previously unobserved (31)P-NMR «through-space» ABCD spin systems and heterogeneous palladium-catalysed C-C and C-H arylation.
The modular design of polyphosphines, diversely functionalized for facile immobilization on virtually any kind of support, is reported. Previously unobserved ABCD (31)P NMR spin-spin systems evidence the control exercised on the polyphosphines conformation. We illustrate the catalytic performance at low Pd loading of the recyclable immobilized polyphosphines in C-C bond formation reactions.
CCDC 988195: Experimental Crystal Structure Determination
Related Article: Matthieu Beaupérin, Radomyr Smaliy, Hélène Cattey, Philippe Meunier, Jun Ou, Patrick H. Toy, Jean-Cyrille Hierso|2014|Chem.Commun.|50|9505|doi:10.1039/C4CC04307C
CCDC 988196: Experimental Crystal Structure Determination
Related Article: Matthieu Beaupérin, Radomyr Smaliy, Hélène Cattey, Philippe Meunier, Jun Ou, Patrick H. Toy, Jean-Cyrille Hierso|2014|Chem.Commun.|50|9505|doi:10.1039/C4CC04307C