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[PDF] Top 20 Unravelling the reaction mechanism

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Unravelling the reaction mechanism

Unravelling the reaction mechanism

... for the synthesis of substituted pyrroles are available nowadays, ranging from the classical Knorr, 1 Hantszch 2 and Paal-Knorr 3,4 syntheses to multiple-component palladium- catalyzed reactions 5 and ... See full document

21

Influence of reaction temperature on the generation of gels during EVA production in tubular reactor

Influence of reaction temperature on the generation of gels during EVA production in tubular reactor

... in the EVA production leads to an increase in the residence time of the ...of the crosslinks during the polymerization. The crosslinking allows raising the molar mass of ... See full document

15

Derivation of the reduced reaction mechanisms of ozone depletion events in the Arctic spring by using concentration sensitivity analysis and principal component analysis

Derivation of the reduced reaction mechanisms of ozone depletion events in the Arctic spring by using concentration sensitivity analysis and principal component analysis

... and the change of reaction rates. Finally, it helps to reduce the size of the reaction ...present, the sensitivity analysis is often conducted in a “brute force” way (Dodge and ... See full document

21

New mechanism of spiral wave initiation in a reaction-diffusion-mechanics system.

New mechanism of spiral wave initiation in a reaction-diffusion-mechanics system.

... setting the time scale of the recovery and contraction process: E(u)~1 for uv0:05, and E(u)~0:1 for ...for the parameters a~0:08 (activation threshold) and k~8 (magnitude of transmembrane current) ... See full document

9

Stepwise or concerted? DFT study on the mechanism of ionic Diels-Alder reaction of chromanes

Stepwise or concerted? DFT study on the mechanism of ionic Diels-Alder reaction of chromanes

... addition, the influence of substituents on sty- rene was analyzed in these ...Herein, the I-DA reactions between cationic aryl oxonium 1 and styrene derivatives 2a–c are analyzed (Scheme 1) using the ... See full document

14

With or without light: comparing the reaction mechanism of dark-operative protochlorophyllide oxidoreductase with the energetic requirements of the light-dependent protochlorophyllide oxidoreductase

With or without light: comparing the reaction mechanism of dark-operative protochlorophyllide oxidoreductase with the energetic requirements of the light-dependent protochlorophyllide oxidoreductase

... of the reaction mechanism cannot be derived from truncated active site models due to the lack of the protein-induced electrostatic field, which depends on the overall charge ... See full document

27

J. Braz. Chem. Soc.  vol.26 número1

J. Braz. Chem. Soc. vol.26 número1

... from the nonlinear character of the current-potential relationship between the faradaic currents and the interfacial ...whatever the electrochemical model adopted to simulate the ... See full document

13

DFT study of the decomposition reactions of nitroethyl benzoates catalyzed by the 1,3-dimethylimidazolium cation

DFT study of the decomposition reactions of nitroethyl benzoates catalyzed by the 1,3-dimethylimidazolium cation

... that the mechanism of the decomposition reaction of nitroalkyl carboxylates also indicate one-step mechanism and makes that process proceed more ...mildly. The value of ... See full document

8

Catalytic mechanism of cellulose degradation by a cellobiohydrolase, CelS.

Catalytic mechanism of cellulose degradation by a cellobiohydrolase, CelS.

... is the bottleneck in cellulosic ethanol production. The cellobiohydrolase CelS from Clostridium thermocellum catalyzes the hydrolysis of cello-oligosaccharides via inversion of the anomeric ... See full document

10

Antioxidant activity of caffeic acid against Iron-induced Free Radical Generation : a  chemical approach

Antioxidant activity of caffeic acid against Iron-induced Free Radical Generation : a chemical approach

... chelating mechanism of CA, in which it binds to iron ions and prevent the oxidative consequences of the Fenton reaction, including lipid perox- idation, DMPO hydroxylation and 2-DR ...inside ... See full document

12

J. Braz. Chem. Soc.  vol.24 número8

J. Braz. Chem. Soc. vol.24 número8

... that the oxidation reaction may take place through two channels: one independent of OH¯ and another facilitated by that same ...consequence, the reaction mechanism shown in Scheme 1 was ... See full document

7

Ozonolysis: the search for a mechanism.

Ozonolysis: the search for a mechanism.

... OZONOLYSIS: THE SEARCH FOR A MECHANISM. The ozonolysis reaction is widely used in the academy and in ...industry. The first reports about the existence of the ozone ... See full document

5

PR-protein activities in table beet against Cercospora beticola after spraying chitosan or acibenzolar-S-methyl

PR-protein activities in table beet against Cercospora beticola after spraying chitosan or acibenzolar-S-methyl

... with the pathogen, but did not differ between plants that received different ...is the production of defense molecules. This includes the phytoalexins, through the route of phenylpropanoids, ... See full document

5

Kinetics and Mechanism of the Reaction of Coherently Synchronized Oxidation and Dehydrogenation of Cyclohexane by Hydrogen Peroxide

Kinetics and Mechanism of the Reaction of Coherently Synchronized Oxidation and Dehydrogenation of Cyclohexane by Hydrogen Peroxide

... The reaction was examined at a temperature range of 450-650 ºC at various flow rates and ratios of starting ...reactants. The process was of sequential and autocatalytic nature with the period ... See full document

5

Kinetics and mechanisms of heterogeneous reaction of NO<sub>2</sub> on CaCO<sub>3</sub> surfaces under dry and wet conditions

Kinetics and mechanisms of heterogeneous reaction of NO<sub>2</sub> on CaCO<sub>3</sub> surfaces under dry and wet conditions

... on the mechanism discussed above, under dry con- ditions, surface nitrate should increase exponentially and reach saturation due to the depletion of surface reactive sites; which is consistent with ... See full document

12

Mechanistic pathways of mercury removal from the organomercurial lyase active site

Mechanistic pathways of mercury removal from the organomercurial lyase active site

... from the mercury coordination sphere, followed by a slower attack of a second thiol, which removes Cys96 (activation ΔH = 16–18 kcal mol − 1 ...to the need of enforcing geometric constraints on our active ... See full document

18

Unravelling the bcl-2 apoptosis code with a simple model system.

Unravelling the bcl-2 apoptosis code with a simple model system.

... to the possible implication of OMM lipids in the function of Bcl-2 family ...examining the lipid-dependence of Bax permeabilizing function lend support to a model whereby Bax permeabilizes the ... See full document

4

Chemiluminescence as an analytical tool: from the mechanism to applications of the reaction of luminol in kinetic based methods.

Chemiluminescence as an analytical tool: from the mechanism to applications of the reaction of luminol in kinetic based methods.

... [r] ... See full document

9

Matéria (Rio J.)  vol.22 número3

Matéria (Rio J.) vol.22 número3

... are the result of different catalytic routes when temperature, time, reaction medium, pH, catalysts, ...[16]. The use of HPAs for the production of HMF has been previously ...19]. The ... See full document

8

J. Braz. Chem. Soc.  vol.24 número8

J. Braz. Chem. Soc. vol.24 número8

... have the best correlation with antioxidant activity, shed light on the reaction mechanism of scavenging/antioxidant activity of the studied ...transfer. The H-atom transfer ... See full document

12

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