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C-2 arylation of piperidines through directed transition-metal-catalyzed sp3 C-H activation.
TLDR
A novel method for the direct C-2 arylation of piperidines with arylboronate esters is reported, resulting from a mechanistic study of the transmetalation step of the catalytic cycle.
The role of the alcohol and carboxylic acid in directed ruthenium-catalyzed C(sp3)-H α-alkylation of cyclic amines.
TLDR
Kinetic studies have revealed that the carboxylic acid additive has a significant effect on catalyst initiation, catalyst longevity, and reverses the reaction selectivity compared with the acid-free reaction (promotes alkylation versus competing alkene reduction).
Eilatin complexes of ruthenium and osmium. synthesis, electrochemical behavior, and near-IR luminescence.
The synthesis and characterization of new Ru(II) and Os(II) complexes of the ligand eilatin (1) are described. The new complexes [Ru(bpy)(eil)(2)](2+) (2), [Ru(eil)(3)](2+) (3), and [Os(eil)(3)](2+)
Effective chiral recognition among ions in polar media.
Effective homochiral recognition occurs between the cationic [Fe(eilatin)3]2+ complex and TRISPHAT anions even in polar media such as 90% acetone-CHCl3 (de > or = 89%).
Pi-stacking induced NMR spectrum splitting in enantiomerically enriched Ru(II) complexes: evaluation of enantiomeric excess.
TLDR
The NMR spectrum splitting exhibited by chiral octahedral complexes can be exploited for the evaluation of their enantiomeric excess simply from the integral ratio, without addition of chiral shift reagents.
Mononuclear and dinuclear complexes of isoeilatin.
TLDR
The dinuclear complexes exhibit two reversible, well-resolved, metal-centered oxidation waves, despite the chemical equivalence of the two metal centers, indicating a significant metal-metal interaction mediated by the bridging isoeilatin ligand.
Mononuclear and dinuclear complexes of dibenzoeilatin: synthesis, structure, and electrochemical and photophysical properties.
TLDR
Luminescence spectra, quantum yield, and lifetime measurements at room temperature in argon-purged acetonitrile have shown that the dinuclear complexes exhibit two reversible, well-resolved, metal-centered oxidation waves, despite the chemical equivalence of the two metal centers, indicating a significant metal-metal interaction mediated by the conjugated dibenzoeilatin ligand.
From eilatin to isoeilatin: a skeletal rearrangement strongly influences pi-stacking of Ru(II) complex.
The C(1)-symmetrical complex [Ru(bpy)(2)(ieil)][PF(6)](2) exhibits unique electrochemical and photophysical properties, and forms discrete dimers in solution and in the solid state held by weak pi-pi
Palladium Complexes Containing Large Fused Aromatic N−N Ligands as Efficient Catalysts for the CO/Styrene Copolymerization
Bis(homoleptic) palladium(II) complexes of the extended aromatic ligands eilatin ([Pd(eil)2][BF4]2 (1a)) and dipyridophenazine ([Pd(dppz)2][BF4]2 (2a), [Pd(dppz)2][PF6]2 (2b)) were synthesized and ...
Dibenzoeilatin: a novel ligand exhibiting remarkable complementary π–π stacking interactions
The complex [Ru(bpy)2(dbneil)][PF6]2 forms discrete dimers in solution held by strong π–π stacking interactions via its distorted dibenzoeilatin ligand, indicating that planarity is not an obligatory
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