Regioselectivity in C-H activation: reagent control in cyclometallation of 2-(1-naphthyl)-pyridine.
2-(1-Naphthyl)-pyridine () possesses sp(2) C-H bonds in both the γ- and δ-positions and is therefore a suitable substrate for studying the cyclometallation selectivity with different reagents and conditions. Such selectivity studies are reported.
M. Kondrashov, David Provost, O. Wendt
semanticscholar +3 more sources
Cyclometallation of two unsaturated carbon−carbon bonds usually requires the application of low-valent metal catalysts, which could cleave the propargylic ester linkage.
Shengming Ma (1312428) +1 more
core +7 more sources
Iridium Complexes of a Triazole-Derived Pincer Ligand: Synthesis, Reactivity, and Transfer Dehydrogenation Catalysis. [PDF]
Ir pincer complexes bearing a triazole architecture in the pincer backbone and O‐ancillary chelating ligands are presented. These were employed in the catalytic transfer dehydrogenation of alkanes as well as of saturated heterocycles. Reactivity of these complexes with silver salts and Lewis acids produced various cationic iridium complexes.
Cardozo J +5 more
europepmc +2 more sources
Synthesis of Cyclometallated Pt(II) Complexes of a Bulky Bipyridine Ligand [PDF]
Treatment of 3,4,5,6-tetraphenyl-2,2′-bipyridine (LH) (7) with [PtCl2(dmso)2] (dmso = dimethyl sulfoxide) in chloroform afforded the cyclometallated square-planar platinum(II) complex [PtCl(L)] (8) and the octahedral Pt(IV) complex mer-[PtCl3(L)] (9 ...
Sarath D. Perera
doaj +1 more source
ADMET Profiling of the Metallodrugs: A Comparative Review of Platinum, Palladium, Gold, Ruthenium, Copper, and Zinc Anticancer Complexes. [PDF]
The successful clinical use of metal‐based anticancer agents depends heavily on a detailed understanding of their absorption, distribution, metabolism, excretion, and toxicology (ADMET) profiles. This review evaluates the ADMET properties of anticancer complexes involving platinum, palladium, gold, ruthenium, copper, and zinc.
Tini MK +5 more
europepmc +2 more sources
Investigating N<sub>2</sub> Fixation Using a Bulky Fe(bisphosphine)<sub>2</sub> Framework. [PDF]
The bulky Fe(0) N2 complex Fe(N2)(dibpe)2 has been prepared and efficiently produces NH3/N2H4 upon treatment with acid, similarly to previously investigated Fe(N2)(depe)2. However, it performs much less effectively during attempted catalytic N2 fixation, allowing investigation of the crucial role of steric hindrance in steps such as N2 binding and ...
Crawford AD +5 more
europepmc +2 more sources
The Exchange of Cyclometalated Ligands [PDF]
Reactions of cyclometalated compounds are numerous. This account is focused on one of such reactions, the exchange of cyclometalated ligands, a reaction between a cyclometalated compound and an incoming ligand that replaces a previously cyclometalated ligand to form a new metalacycle: + H-C*~Z ⇄ + H-C~Y.
openaire +3 more sources
Synthesis and Characterization of Amine-Functionalized Thiosemicarbazone Cyclopalladated Compounds
Differences in the functional groups of the ligands can change the properties of the cyclometallated compounds and modify their suitability for various applications, such as catalysis and biomedicine.
Francisco Reigosa +2 more
doaj +1 more source
Unprecedented endo-oxidative cyclometallation and [4 + 3] cycloaddition of diene-vinylcyclopropanes
We report here a Rh(I)-catalyzed [4 + 3] cycloaddition of Z -diene- vinylcyclopropanes ( Z -diene-VCPs) to construct challenging 5/7-fused bicyclic rings with a bridgehead all-carbon quaternary center. Detailed quantum chemical calculations and deuterium
Jun Yang +4 more
semanticscholar +1 more source
Two differently substituted pyrazole ligands have been investigated with regard to the topology of their Pt complexes: upon deprotonation, two mononuclear 1:2 PtII-pyrazole complexes—one of the sterically unhindered 4-Me-pzH and one of the bulky 3,5-tBu ...
Zhichun Shi +5 more
doaj +1 more source

