Abstract
1. bis-(N-Salicylidene-α-hydroxyalaninato)cobalt (III) was synthesized by the oxidation of bis-(N-salicylidenealaninato)cobalt (III). Three possible diastereomers of this product were isolated. 2. Theα-hydroxy group of bis-(N-salicylidene-α-hydroxyalaninato)cobalt (III) undergoes exchange in dilute acid solutions, which leads to the epimerization of the diastereomers in water, and to a mixture of the diastereomers of bis-(N-salicylidene-α-ethoxyalaninato)cobalt (III) in ethanol. 3. It was shown that theoretically bis-(N-salicylidene-α-hydroxyalaninato)cobalt (III) can be synthesized by the reaction of pyruvate and salicylaldehyde with Co(OH)3 in the presence of excess ammonium salt.
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