Pd(0) and Pd(II) derivatives with heteroannularly bridged chiral ferrocenyl diphosphine ligands – A stereochemical analysis

Coordination Behaviour of 1-(4,2′:6′,4′′-terpyridin-4′-yl)ferrocene and 1-(3,2′:6′,3′′-terpyridin-4′-yl)ferrocene: Predictable and Unpredictable Assembly Algorithms

“…[4] The incorporation of ferrocenyl-units also allows the development of promising properties for applications including photoinduced electron transfer, [5] electrochemical sensing [6] and enhanced stability and reactivity in palladium based catalysts for cross-coupling reactions. [7,8] Scheme 1. Examples of mono-and disubstituted ferrocenyl ligands used for the assembly of discrete complexes and coordination polymers.…”

Alkene-Coordinated Palladium(0) Cross-Coupling Precatalysts: Comparing Oxidative Addition and Catalytic Reactivity for Dimethyl Fumarate and Maleic Anhydride Stabilizing Ligands

“…72 Furthermore, several (R3P)2Pd-DMFU complexes are known, either with simple monophosphines, [73][74][75][76][77] or with chelating phosphines. [78][79][80][81][82][83][84][85][86][87][88][89] This work provides important structural and synthetic guidance toward candidate Pd(0) precatalysts. Specifically, many different synthetic routes are used to access these compounds, including reduction of LnPd(allyl)X species in the presence of DMFU, coordination of DMFU to Pd(PR3)n complexes, or ligand substitution using Pd2dba3.…”

Alkene-Coordinated Palladium(0) Cross-Coupling Precatalysts: Comparing Oxidative Addition and Catalytic Reactivity for Dimethyl Fumarate and Maleic Anhydride Stabilizing Ligands

“…α-Diimine ligands are well-studied in organopalladium chemistry, most notably for Pd(II) olefin polymerization catalysts. − Corresponding Pd(0) complexes with the DAB-variant of α-diimines (derived from glyoxyl) have also been previously studied, , including as precatalysts in Heck coupling, − catalytic alkyne hydrogenation, − methoxycarbonylation of styrene, , and the synthesis of carbohydrate derivatives . Furthermore, several (R 3 P) 2 Pd–DMFU complexes are known, either with simple monophosphines − or with chelating phosphines. − This work provides important structural and synthetic guidance toward candidate Pd(0) precatalysts. Specifically, many different synthetic routes are used to access these compounds, including reduction of L n Pd(allyl)X species in the presence of DMFU, coordination of DMFU to Pd(PR 3 ) n complexes, or ligand substitution using Pd 2 dba 3 .…”