Diphosphinite ligands 2 and 3, easily prepared from inexpensive D(+)-xylose in few steps, were tested in the Rh-catalyzed asymmetric hydroformylation of several vinyl arenes. High regio-selectivities in branched aldehyde ...

Introducción: El objetivo del tratamiento endodóntico es eliminar o al menos reducir a niveles aceptables la cantidad de microorganismos, además de remover tejido pulpar inflamado o necrótico del canal radicular. Debido ...

Sucrose forms a dicationic complex with cobalt(III)bis(phenanthroline) which can be isolated as the sparingly water-soluble triiodide salt or the water-soluble chloride. The circular dichroism (CD) spectrum demonstrates ...

The Delta-Lambda isomerization of partially resolved [Ni(1,10-phen)(2)(S-aa)](+) systems, where Saa is S-phenylalaninate, S-isoleucinate, S-leucinate, S-valinate, or S-alaninate, has been studied at 15, 20 and 25 degrees ...

Examination of 1H chemical shifts of a complex of D-glucosamine with bis-phenanthroline cobalt(III)shows that the dominant ∆-complex is formed from α-D-glucosamine. A molecular mechanics simulation of the structure of ...

Introduction - Glutathione and glutathione disulfide can be determined by capillary zone electrophoresis; however, the frequent use of acidic precipitation of protein from samples prior to analysis generates an acidic ...

Reaction between cis-[Co(NH3)(H2O)(2)](3-) and ammonia in aqueous solution, in the presence of a carbohydrate, leads to the formation of the tetranuclear complex of cobalt (III): [Co-4(NH3)(12)(OH)(6)](6+) partially resolved. ...

Tetranuclear complexes of Co(III) with bidentate ligands and hydroxo bridges were synthesized in the presence of D-glucosamine, D-mannosamine. D- and L-xylose with the partial resolution the these complexes.

The mononuclear cobalt(III) complex derived from 1,10-phenanthroline and maltose ([Co(phen)(2)maltose]Cl-2 center dot 3H(2)O) (1) has been synthesized and characterized in aqueous solution. Its characterization was based ...