89890-32-4Relevant academic research and scientific papers
PRODUCTS FOR THE TREATMENT OF THE IRON CHLOROSIS
-
Page/Page column 4, (2010/02/17)
The present invention consists on the synthesis of new products for the treatment of the iron chlorosis. These products may have improved properties regarding the currently known treatments. The new products are non-symmetrical ethylene diamino hidroxyphenyl acetic acid derivatives possessing only five coordination sites able to chelate metals.
Synthesis and chemical characterization of the novel agronomically relevant pentadentate chelate 2-(2-((2-hydroxybenzyl)amino)ethylamino)2-(2- hydroxyphenyl)acetic Acid (DCHA)
Lopez-Rayo, Sandra,Hernandez, Diana,Lucena, Juan J.,Escudero, Rosa,Gomez-Gallego, Mar,Sierra, Miguel A.
, p. 7908 - 7914 (2011/09/20)
Iron chelates analogous to o,o-EDDHA/Fe3- are the fertilizers chosen to treat iron chlorosis in plants growing on calcareous soil. The isomer o,p-EDDHA/Fe3+ presents less stability but faster assimilation by the plant than o,o-EDDHA/
Interaction of the iron (III) complex of N-[2-((o-hydroxyphenyl)glycino)ethyl]salicylideneamine with catechol and cyanide: A model for the binding site in the dioxygenase enzymes
Spartalian,Carrano, Carl J.
, p. 19 - 24 (2008/10/08)
The interaction of N-[2-((o-hydroxyphenyl)glycino)ethyl]salicylideneamine, Fe(EHGS), with catechol and cyanide in aqueous solution has been investigated. Catechol appears to bind the iron center of Fe(EHGS) in a bidentate mode with a binding constant of log K = 10.6 (2) for the reaction Fe(EHGS) + cat2- ? Fe(EHGS)cat. The reaction of Fe(EHGS) with cyanide initially produces a violet high-spin monocyano complex via displacement of H2O/OH in the sixth coordinating position. Further reaction yields a green low-spin tricyano species, which ultimately decays to ferricyanide. The kinetics of these reactions are consistent with this model. Analysis of the spectral properties of the cyano complexes of several phenolate-containing model compounds and non-heme iron proteins suggests that an anisotropic g ≈ 2.0 EPR signal and a strong absorption band (εM ≈ 900-1500) in the 620-720-nm range may characterize low-spin Fe(III) tyrosinate proteins. It is proposed that the nitrile hydratases (J. Am. Chem. Soc. 1987, 109, 5848) may belong to this new group.
