Reactions of π-benzeneruthenium(II) complexes with alkylating reagents

Nucleophilic substitution reactions of [(η5-Cp*)Ru(η6-C6H5CO2H)]+: Synthesis, characterization and cytotoxicity of organoruthenium ester and amide complexes

“…All data were processed using Mass Linx Version IV (IBM) software. 1 H and 13 C NMR spectra were obtained on a 400 MHz Varian Gemini spectrometer with each sample being prepared in a solution of DMSO-d 6 . Peaks obtained for the deuterated solvent were used as the internal reference points for the spectra (reference peak: DMSO-d 6 , 1 H d 2.49 ppm; 13 C d 39.5 ppm).…”

“…Group 8 sandwich complexes of the structure [(h 5 -Cp)Ru(h 6 -Arene)] þ (where Cp ¼ (C 5 H 5 ) or Cp* ¼ (C 5 (CH 3 ) 5 )) have been studied now for a number of years, with the first such ruthenium derivative [(h 5 -Cp)Ru(h 6 -benzene)]Cl prepared as early as 1973 by Baird et al [1] Through the combination of a wide range of synthetic procedures, structurally diverse libraries of [(h 5 -Cp*)Ru(h 6 -Arene)] þ complexes have been prepared with the [(h 5 -Cp*)Ru] þ moiety in particular demonstrating a strong areneophilic nature. This organoruthenium cation displays the capability of selectively coordinating to the aromatic ring of a wide array of functionalized arene ligands.…”

Catalytic sugar-assisted transfer hydrogenation with Ru(II), Rh(III) and Ir(III) halfsandwich complexes

“…benzylidene-2,3-dideoxy-3-tosylamido-␣-D-glucopyranoside ligand (5, Chart 1), (S)-2,2 -diamino-1,1 -binaphthalene (6, Chart 1) and (R,R)-1,2,-diphenylethylenediamine (7, Chart 1) as ligands of Á 6 -arene-ruthenium(II), pentamethyl-Á 5 -cyclopentadienylrhodium(III) and pentamethyl-Á 5 -cyclopentadienyliridium(III) (8-25, Chart 1) were prepared by common methods [15][16][17][18][19][20][21] , and were recently published [22]. Such compounds with chelating nitrogen ligands are effectively used in catalysis, e. g. in water oxidation [23], intramolecular hydroamination of alkynes [24], Diels-Alder reactions [25], asymmetric Michael addition reactions [26], asymmetric hydrogenation [27,28], and transfer hydrogenation [29][30][31], reactions of ketones and imines.…”

“…The formerly unknown precursor complexes with methyl 2,3-diamino-4,6-O-benzylidene-2,3-dideoxy-␣-D-hexopyranosides (compounds 1-4, Chart 1), methyl 2-amino-4,6-OChart 1. Diaminomonosaccharides 1-4, methyl 2-amino-4,6-O-benzylidene-2,3-dideoxy-3-tosylamido-␣-D-glucopyranoside (5) and corresponding diamino derivatives (S)-2,2 -diamino-1,1 -binaphthalene (6) and (R,R)-1,2-diphenylethylenediamine (7) and their halfsandwich complexes of iridium(III), -rhodium(III) and ruthenium(II) (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) for transfer hydrogenation ([T-4-R] and [T-4-S] denote the absolute configuration of the metal center in a pseudo-tetrahedral environment following the CIP rules).…”

Synthesis of μ-diborolyl triple-decker complexes [CpCo(1,3-C3B2Me5)Ru(arene)]+

“…* The behavior of anion 1 in this reaction resembles that of the cyclopentadienide anion reacting with [(C 6 H 6 )RuCl 2 ] 2 with the formation of [CpRu(C 6 H 6 )] + . 8 Hexafluorophosphates and tetraphenylborates of cat ions 2a,b are brightly colored solid substances stable in air. These salts are well soluble in polar organic solvents, such as CH 2 Cl 2 and acetone.…”