Metallocene sulfoxides

Various metallocene sulfoxides of quite high ee s are now available through the asymmetric oxidation of the corresponding sulfides by the Kagan reagent (Scheme... 

Analytical Properties (i-Cyclodextrin (cycloheptamylose) normal phase separation of positional isomers of substituted benzoic acids reverse phase separation of dansyl and napthyl amino acids, several aromatic drugs, steroids, alkaloids, metallocenes, binapthyl crown ethers, aromatics acids, aromatic amines, and aromatic sulfoxides this substrate has seven glucose units and has a relative molecular mass of 1135 the inside cavity has a diameter of 0.78 nm, and the substrate has a water solubility of 1.85 g/ml, although this can be increased by derivatization Reference 13-28... 

Such phenomena have been reported for electrode reactions of Cr(EDTA) and Fe(CN)g " in which the viscosity of the solvent (water or dimethyl sulfoxide) is varied by the addition of dextrose or sucrose [64—66]. Solvent friction has also been invoked in reductions of thiophenecarboxylatopenlaamminecobalt(HI) complexes [67] and of metallocenes [68, 69] at Hg electrodes in organic solvents. Of particular interest in the present context are studies by Murray et al. [70, 71] of the reduction kinetics of Co(bpy)3 in a variety of organic solvents, in which kei was found to be proportional to 1/rj, to 1/tl, and to the mean diffusion coefficient D of the reactants over a huge range (11 orders of magnitude) of kei-... 

---