126860-27-3Relevant academic research and scientific papers
Combinatorial approach to chiral tris-ligated carbophilic platinum complexes: Application to asymmetric catalysis
Pradal, Alexandre,Gladiali, Serafino,Michelet, Veronique,Toullec, Patrick Y.
supporting information, p. 7128 - 7135 (2014/06/09)
A straightforward methodology for the synthesis of libraries of chiral tris-ligated cationic platinum complexes and their in situ evaluation as asymmetric carbophilic catalysts in a model domino hydroarylation/cyclization reaction of a 1,6-enyne was developed. A catalyst-generation process based on a combination of a monodentate and a bidentate phosphorus ligand allowed the formation of 108 chiral complexes. One-pot screening of the stereoinduction obtained with this library in a test domino addition/cyclization reaction validated this approach and stressed the key role played by the monodentate ligand partner in obtaining high enantioselectivities. In the case of two challenging substrate/nucleophile combinations, the combinatorial approach resulted in a significant gain in enantioselectivity.
Effects of the electronic properties of chiral chelating diphosphines in stereoselective Diels-Alder cycloaddition reactions promoted by their transition metals complexes
Celentano, Giuseppe,Benincori, Tiziana,Radaelli, Stefano,Sada, Mara,Sannicolò, Franco
, p. 424 - 430 (2007/10/03)
The Pd(II) and Pt(II) complexes (perchlorates and hexafluoroantimoniates, respectively) of a series of C2 symmetric biheteroaromatic diphosphines differing in their electronic properties at phosphorus have been tested as catalysts in [4 + 2]-cy
