Peter Dierkes

TL;DR: The history of “ligand effects” in catalysis, a range of reactions for which a notable effect has been observed, and some of the established examples of bite angle effects involve diphosphine ligands.

TL;DR: The enantioselective outcome of transfer hydrogenation reactions that are catalysed by ruthenium(II) amino alcohol complexes was studied by means of a systematically varied series of ligands and it was found that both the substituent at the 1-position in the 2-amino-1-alcohol ligand and the substitution at the amine functionality influence the enantiOSElectivity of the reaction to a large extent.

TL;DR: Palladium complexes of the chiral diphosphanes 1 and 2 which possess a rigid backbone and a large bite angle catalyze the alkylation of allyl compounds with both high enantioselectivities and reaction rates, particularly with less sterically demanding substrates.

TL;DR: Preferential rotation in substrate-palladium intermediates in a catalyzed asymmetric allylic alkylation is proposed to be responsible for both the observed kinetic resolution of the racemic allylic acetate starting material as well as the high selectivity found in the enantiodiscriminating product-forming step.

TL;DR: In this paper, the synthesis of four ligands of a family of tridentate diphosphine ligands possessing C 2 symmetric chirality for use in transition metal complex asymmetric catalysis was described.