1978 Volume 51 Issue 12 Pages 3522-3526
Nickel(II) complexes of Schiff bases derived from salicylaldehyde and glycylaspartate or glycylglutamate were prepared and their structures were determined on the basis of electronic absorption and 1H NMR spectra. The relationship between structure of the chelates and stability of fused-ring systems was discussed in some detail, and was applied to a selective hydrolysis reaction of dimethyl glycylaspartate and glycylglutamate. Nickel(II) complexes of Schiff bases derived from salicylaldehyde and β-methyl glycylaspartate or γ-methyl glycylglutamate were obtained by a reaction between dimethyl glycylaspartate or glycylglutamate and bis(salicylaldehydato)nickel(II) in methanol containing sodium or potassium hydroxide.
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