Alkene hydrosilylation is amongst the largest industrial homogenous catalysis processes. Cobalt offers a sustainable alternative to commonly used platinum catalysts achieve this transformation. Using two bisiminopyridine cobalt(II) regiodivergent of alkenes has been developed. Variation pre-catalyst activator and ligand substituents were investigated enable controlled, both aryl- alkyl-substitu...

to inform healthcare professionals of a rare serious reaction leading to leg amputation following intramuscular injection of iron dextran and report comments for preventing such reactions.a case of leg amputation following intramuscular injection of iron dextran reported to iranian pharmacovigilance center was reviewed. patient and reaction data was collected by assessing the reported yellow ca...

Coordination compounds of iron in high oxidation states have been invoked as reactive intermediates in biocatalyses. Iron(IV) ferryl species are examples of such highly reactive species that have long been known to be at the catalytic centers of oxygenases. Supported by X-ray diffraction studies on nitrogenase, the iron nitride moiety has recently been suggested to be present at the site of bio...

friedreichs ataxia (frda) is an inherited recessive disorder characterized by progressive neurological disability and heart abnormalities. a deficiency in the protein frataxin causes this disease. frataxin deficiency leads to progressive iron accumulation in mitochondria, excessive free radical production and dysfunction of respiratory chain complexes. the expansion (gaa) repeat in the first in...

To prevent side effects of excessive accumulation of iron in the body, chelation therapy is recommended in transfusion-dependent patients. The reaction between deferiprone and iron to form a complex red substance can be described as 3 molecules of the chelator, deferiprone, reacting with a molecule of iron. However, the actual mechanism of the deferiprone-iron binding reaction is not well under...

Iron is an essential element for life. However, the iron overload can be toxic. Here, we investigated the significant increase of tenellin and iron-tenellin complex production in ferricrocin-deficient mutants of Beauveria bassiana. Our chemical analysis indicated that the ferricrocin-deficient mutants T1, T3 and T5 nearly abolished ferricrocin production. In turn, these mutants had significant ...