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Insights into the mechanism of an S N2 reaction from the reaction force and the reaction electronic flux
(American Chemical Society, 2012)
The mechanism of a simple S N2 reaction, viz; OH - + CH 3F = CH 3OH + F - has been studied within the framework of reaction force and reaction electronic flux. We have computationally investigated three different types of ...
Competing mechanisms for the reaction of dichloropropynylborane with 2-tert-butylbutadiene. Diels-Alder reaction versus alkynylboration
(Royal Society of Chemistry, 2015-05)
Density functional theory and the quantum theory of atoms in molecules approach were used to study two competing process: the Diels-Alder reaction (DA) and the 1,4-alkynylboration (AB) between dichloropropynylborane (1) ...
Kinetics and Reaction Mechanism of Biothiols Involved in SNAr Reactions: An Experimental Study
(2022)
Few kinetic parameters, or reaction rates, are known up to date in detail about 1-chloro and 1-fluoro-2,4-dinitrobenzene (ClDNB and FDNB, respectively) with a series of biothiols in aqueous media. These biological nucleophiles ...
Pathogenic mechanisms underlying adverse reactions induced by intravenous administration of snake antivenoms
(2013-12-15)
Snake antivenoms are formulations of immunoglobulins, or immunoglobulin fragments, purified from the plasma of animals immunized with snake venoms. Their therapeutic success lies in their ability to mitigate the progress ...
Pathogenic mechanisms underlying adverse reactions induced by intravenous administration of snake antivenoms
(2013-12-15)
Snake antivenoms are formulations of immunoglobulins, or immunoglobulin fragments, purified from the plasma of animals immunized with snake venoms. Their therapeutic success lies in their ability to mitigate the progress ...
Kinetics and reaction mechanism of biothiols involved in SNAr reactions: an experimental study
(Frontiers Media, 2022)
Few kinetic parameters, or reaction rates, are known up to date in detail about 1-chloro and 1-fluoro-2,4-dinitrobenzene (ClDNB and FDNB, respectively) with a series of biothiols in aqueous media. These biological nucleophiles ...
Estudos sobre o uso de NbCl5 como ácido de Lewis em reações de Povarov
(2011)
The aim of this work was to investigate the use of NbCl5 as Lewis acid in cycloadittion reactions [Reaction Aza-Diels-Alder (Povarov)] between Schiff bases and enol ethers. Comparison of reaction yields, obtained products ...
Heterogeneous catalytic ethanol transformation into chemicals: Some Brazilian contributions
(2021-01-01)
Described here are the ethanol heterogeneous catalytic transformations to higher value-added products such as hydrogen (H2), ethylene (C2H4), Guerbet condensation products (mostly 1-butanol), the Lebedev dehydration product ...
Physical-chemical and thermodynamic analyses of steam reforming of ethanol to hydrogen production
(2005-12-01)
The steam reforming is one of most utilized process of hydrogen production because of its high production efficiencies and its technological maturity. The use of ethanol for this purpose is a interesting option because ...