The reaction kinetics of hydrolysis resolution of racemic epichlorohydrin to chiral chloropropandiol and optically active epichlorohydrin, catalyzed by chiral salen metal complexes, was studied by using gas chromatography. The effects of temperature, catalyst type and catalyst concentration on the reaction rate were explored. On the experimental results, some kinetic regularity for the reaction has been obtained.
Eight novel binuclear tetradentate Schiff base complexes (M=Cu?,Ni?,Zn?) are synthesized. The structure of complexes is two discrete Schiff base unit bridged. The complexes were condensed from series substituent Ketones (5 chloro 2 hydroxybenzophenone, 5 methyl 2 hydroxy benzophenone, 5 Bromo 2 hydroxybenzop henone) and dialdehydes (5,5′ methylene disalicylaldehyde) with the amino group of 1,2 diaminobenzene, and by Metal ion as template. The compounds were characterized by elemental analyses, FT infrared spectra, Raman, 1H NMR, UV vis electronic spectra, EPR spectra. The FT infrared spectra and Raman spectra of complexes were compared and discussed. The UV vis election spectra, 1H NMR and EPR spectra of complexes have also been attributed and minutely analyzed.
