Hydroxylation of acetanilide by iron-sulfur and nickel-sulfur complex systems.
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چکیده
منابع مشابه
Sulfur versus iron oxidation in an iron-thiolate model complex.
In the absence of base, the reaction of [Fe(II)(TMCS)]PF6 (1, TMCS = 1-(2-mercaptoethyl)-4,8,11-trimethyl-1,4,8,11-tetraazacyclotetradecane) with peracid in methanol at -20 °C did not yield the oxoiron(IV) complex (2, [Fe(IV)(O)(TMCS)]PF6), as previously observed in the presence of strong base (KO(t)Bu). Instead, the addition of 1 equiv of peracid resulted in 50% consumption of 1. The addition ...
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Iron-sulfur (Fe-S) clusters are present in more than 200 different types of enzymes or proteins and constitute one of the most ancient, ubiquitous and structurally diverse classes of biological prosthetic groups. Hence the process of Fe-S cluster biosynthesis is essential to almost all forms of life and is remarkably conserved in prokaryotic and eukaryotic organisms. Three distinct types of Fe-...
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Recent experimental and theoretical studies have shown an essential role of sulfur segregationinduced amorphization of crystalline nickel leading to its embrittlement at a critical sulfur concentration of 14%, but the atomistic mechanism of the amorphization remains unexplained. Here, molecular dynamics simulations reveal that the large steric size of sulfur impurity causes strong sulfur-sulfur...
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The phenomenology of intergranular sulfur attack in nickel and nickel-base alloys and the resulting embrittlement on post-exposure tensile testing was investigated. Using Ni 270 as a model material, specimens were exposed at temperatures between 450°C and 800°C to Fgous sulfur e vironments with sulfur partial pressures ranging from atm. to 10' B atm. Increasing exposure temperature and increasi...
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The methyltetrahydrofolate:corrinoid/iron-sulfur protein methyltransferase (MeTr) enzyme was originally isolated from the acetogenic bacteria Moorella (formerly Clostridium) thermoaceticum [612]. This bacterium, as some other anaerobic organisms, can obtain its entire carbon and energy source from CO or H2/CO2 by the Wood-Ljungdahl or acetyl-CoA pathway [613-615]. Initially, CO2 is reduced to f...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1978
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.26.234