New efficient P,N,O-tridentate ligands for Ru-catalyzed asymmetric transfer hydrogenation

DNA Binding Properties of Two Ruthenium(III) Complexes Containing Schiff Bases Derived from Salicylaldehyde: Spectroscopic and Electrochemical Evidence of CT DNA Intercalation

“…Solid N-phenyl-5-chlorosalicylidenimine was recrystallized from ethanol at 70 °C with 70−80 % yield. 2 ], was prepared according to the published procedure 22 and precipitated as sodium salt. 0.46 g (2 mmol) N-Ph-5-Cl-salimH in 30 mL ethanol absolute was added to the solution of 0.26 g (1 mmol) RuCl 3 · 3H 2 O in absolute alcohol (10 mL).…”

“…The precipitation was performed by adding the water solution of 0.058 g NaCl (1 mmol) / 1 mL. The dark green solid was washed with diethyl ether and dried over P 2 …”

“…Cyclic voltammograms of Na[RuCl 2 (N-R-5-Xsalim) 2 ] were recorded on an electrochemical workstation Autolab potentiostat/galvanostat (PGSTAT 12) in DMF (N,N-dimethylformamide) solution with sodium perchlorate as supporting electrolyte using glassy carbon working electrode and Ag/AgCl reference electrode in the range of potential of −1.5 to +0.1 V, with scan rate rate 0.8 V s −1 . Working electrode was polished prior to measurements with 1 μm diamond paste.…”

“…Electrochemical titrations of ruthenium compounds with CT DNA were recorded by cyclic voltammetry in Tris-HCl buffered water solution (pH 7.4), at ambient temperature in 5 mL-volume conical compartment self-made cell. The volume of the cell is adapted to the experiments meaning to the required volumes of Na[RuCl 2 (N-R-5-X-salim) 2 ] solutions (2 mL) and added μL-amounts (0−60) of CT DNA.…”

Chiral ferrocenyl diphosphines for asymmetric transfer hydrogenation of acetophenone

“…3 Other types of ligands such as amino alcohols, 4 aminooxazolines, 5 aminophosphines, 6 diureas, 7 and phosphine oxides 8 have also been used with various levels of rates, yields and selectivities. In particular, only ferrocenyl ligands possessing oxazoline/phosphines, 9 triphosphines, 10 amino alcohols 11 imine/phosphines, 12 and diamines 13 have been studied. Also, to our best knowledge, the involvement of ferrocenyl diphosphines has not been reported so far.…”