Aulak, Kulwant S., Thomas Koeck, John W. Crabb, and Dennis J. Stuehr. Dynamics of protein nitration in cells and mitochondria. Am J Physiol Heart Circ Physiol 286: H30–H38, 2004; 10.1152/ ajpheart.00743.2003.—Nitric oxide is a precursor of reactive nitrating species such as peroxynitrite and nitrogen dioxide that modify proteins to generate 3-nitrotyrosine. Many diseases are associated with inc...

Aromatic nitration has been used to modify the polymer mam chain of polysulfone and polyethersulfone Alteration m the gas separation charactenstlcs of homogeneous membranes made out of these polymers could be observed upon nitration Generally, separation factors for gas mixtures of CO&H, increased while the permeability decreased Remarkably, a decreasing dlffuslvlty for both gases upon nitratio...

Nitro catechols via 2 hydroxyl group and a nitro group have a wide range of functions including reagents form stable complexes with more than 40 elements in the fields of analytical chemistry, biochemistry, coordination chemistry, environmental chemistry, atrium exploration, organic chemistry, pharmacy, etc. Moreover, the nitro to amine recovery has a potential function in different fields. In ...

Most thymocytes are deleted by thymic selection. The mechanisms of cell death are far from being clear. Peroxynitrite is a powerful oxidant produced in vivo by the reaction of superoxide (O2) with nitric oxide (NO•) and is able to mediate apoptosis. The aim of this study was to analyze whether NO and peroxynitrite could play a role in human thymocyte apoptosis. The results indicate that 3-(4-mo...

Most thymocytes are deleted by thymic selection. The mechanisms of cell death are far from being clear. Peroxynitrite is a powerful oxidant produced in vivo by the reaction of superoxide (O2*-) with nitric oxide (NO*) and is able to mediate apoptosis. The aim of this study was to analyze whether NO and peroxynitrite could play a role in human thymocyte apoptosis. The results indicate that 3-(4-...

Silica gel was found to be an excellent medium for some useful organic transformations under organic solvent-free conditions, such as (1) the Friedel-Crafts-type nitration of arenes using commercial aqueous 69% nitric acid alone at room temperature, (2) one-pot Wittig-type olefination of aldehydes with activated organic halides in the presence of tributyl- or triphenylphosphine and Hunig's base...

BACKGROUND Eugenol, the main constituent of clove oil possesses a number of medicinal activities. To enhance the medicinal property, structural modification is required. On the other hand, bismuth nitrate pentahydrate has been established as an excellent eco-friendly nitrating agent for several classes of organic compounds. RESULTS Bismuth nitrate pentahydrate-induced nitration of eugenol has...

Zeolite catalysts can play an important role in the development of greener organic syntheses through their abilities to act as heterogeneous catalysts, support reagents, entrain by-products, avoid aqueous work-ups and enhance product selectivities via shape-selectivity. We have shown that zeolites under modest conditions can have advantages in para-regioselective nitration, alkylation, acylatio...