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A Theoretical Study of 2-nitrofuran vs 3-nitrofuran as Dienophilic Electrophile in Polar Cycloaddition Reaction: Comparison of the Reactivity and Reaction Mechanism
(ScienceDomain international, 2016-11)
In this study, we analyzed in a theoretical form the behavior of 2-nitrofuran and 3-nitrofuran acting as dienophilic electrophiles in polar cycloaddition reactions joint to different dienes. The reactivity and regioselectivity ...
Pattern formation and localized structures in reaction-diffusion systems with non-Fickian transport
(2006)
We study the robust dynamical behaviors of reaction-diffusion systems where the transport gives rise to non-Fickian diffusion. A prototype model describing the deposition of molecules in a surface is used to show the generic ...
Relationships between the third-order reactivity indicators in chemical density-functional theory
(AMER INST PHYSICS, 2009)
Relationships between third-order reactivity indicators in the closed system [N, v(r)], open system [mu, v(r)], and density [rho(r)] pictures are derived. Our method of derivation unifies and extends known results. Among ...
Site activation effects promoted by intramolecular hydrogen bond interactions in SNAr reactions
(Royal Society of Chemistry, 2014)
The nucleophilic aromatic substitution reaction of benzohydrazide derivatives towards 2-chloro-5-nitropyrimidine is used as model system to experimentally and theoretically show that intramolecular hydrogen-bond formation ...
Site activation effects promoted by intramolecular hydrogen bond interactions in SNAr reactions
(Royal Society of Chemistry, 2014)
The nucleophilic aromatic substitution reaction of benzohydrazide derivatives towards 2-chloro-5-nitropyrimidine is used as model system to experimentally and theoretically show that intramolecular hydrogen-bond formation ...
Monotone waves for non-monotone and non-local monostable reaction-diffusion equations
(2016)
We propose a new approach for proving existence of monotone wavefronts in non-monotone and non local monostable diffusive equations. This allows to extend recent results established for the particular case of equations ...
Analysis of CAPZA3 localization reveals temporally discrete events during the acrosome reaction
(Wiley, 2010-09)
In mammals, the starting point of development is the fusion between sperm and egg. It is well established that sperm fuse with the egg through the equatorial/post-acrosomal region. Apart from this observation and the ...
The Hen's Egg Test on Chorioallantoic Membrane: An Alternative Assay for the Assessment of the Irritating Effect of Vaccine Adjuvants
(2016-11-01)
Local reactions are the most frequent adverse event associated with vaccines. Adjuvants are major constituents of many vaccines and they are frequently involved in these reactions, associated with their irritating effect ...
Understanding the influence of Lewis acids in the regioselectivity of the Diels–Alder reactions of 2-methoxy-5-methyl-1,4-benzoquinone: A DFT study
(Elsevier B.V., 2009-03-03)
The mechanisms of the Diels–Alder (DA) reactions of 2-methoxy-5-methyl-1,4-benzoquinone 1 with 2-
methyl-1,3-butadiene 2, in the absence and in the presence of LA catalysts, have been studied using the
DFT method at the ...
Anaphylactic reaction/angioedema associated with jellyfish sting
(Soc Brasileira Medicina Tropical, 2018-01-01)
The most frequent jellyfish in Southern Brazil causes mainly local pain and skin plaques. A 3-year-old female bather presented an erythematous, irregular plaque on the left forearm after contact with a jellyfish and intense ...