Results 51 to 60 of about 495,205 (264)

A rapid, easy, and efficient method for synthesis of 4,4'-(arylmethylene)-bis-(1H-pyrazol-5-ols), catalyzed by boehmite nanoparticles [PDF]

open access: yesشیمی کاربردی روز, 2016
An efficient and eco-friendly method is introduced for the synthesis of 4,4'-(arylmethylene)-bis-(1H-pyrazol-5-ols) by the condensation reaction of two equivalents of 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one with various aromatic aldehydes ...
محمد باخرد   +4 more
doaj   +1 more source

Identification of Key Residues for Enzymatic Carboxylate Reduction

open access: yesFrontiers in Microbiology, 2018
Carboxylate reductases (CARs, E.C. 1.2.1.30) generate aldehydes from their corresponding carboxylic acid with high selectivity. Little is known about the structure of CARs and their catalytically important amino acid residues.
Holly Stolterfoht   +10 more
doaj   +1 more source

Aldehyde-containing urea-absorbing polysaccharides [PDF]

open access: yes, 1977
A novel aldehyde containing polymer (ACP) is prepared by reaction of a polysaccharide with periodate to introduce aldehyde groups onto the C2 - C3 carbon atoms.
Hsu, G. C.   +2 more
core   +1 more source

The effect of host structure on the selectivity and mechanism of supramolecular catalysis of Prins cyclizations. [PDF]

open access: yes, 2015
The effect of host structure on the selectivity and mechanism of intramolecular Prins reactions is evaluated using K12Ga4L6 tetrahedral catalysts. The host structure was varied by modifying the structure of the chelating moieties and the size of the ...
Bergman, Robert G   +8 more
core   +2 more sources

Open Notebook Science Challenge: Solubilities of Organic Compounds in Organic Solvents [PDF]

open access: yes, 2010
This book contains the results of the Open Notebook Science Solubility Challenge. All experimental measurements are provided with a link to either the laboratory notebook page where the experiment was carried out or to a literature reference.
Andrew Lang   +17 more
core   +6 more sources

Microwave-assisted practical and simple method for heterocyclization of o-phenylenediamine and aldehydes using DDQ as oxidant agent

open access: yesGreen Chemistry Letters and Reviews, 2017
In this research, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) has been used in the condensation reaction between o-phenylenediamine and various arylaldehydes as oxidants under microwave irradiation.
Hossein Naeimi, Zahra Babaei
doaj   +1 more source

Systemic Acrolein Elevations in Mice With Experimental Autoimmune Encephalomyelitis and Patients With Multiple Sclerosis

open access: yesFrontiers in Neurology, 2018
Demyelination and axonal injury are the key pathological processes in multiple sclerosis (MS), driven by inflammation and oxidative stress. Acrolein, a byproduct and instigator of oxidative stress, has been demonstrated as a neurotoxin in experimental ...
Melissa Tully   +14 more
doaj   +1 more source

Method for the calculation of the Hamaker constants of organic materials by the Lifshitz macroscopic approach with DFT [PDF]

open access: yesJ. Phys. Chem. A 123, 8726-8733 (2019), 2019
The Hamaker constants, which are coefficients providing quantitative information on intermolecular forces, were calculated for a number of different materials according to the Lifshitz theory via simple DFT calculations without any experimental measurements being performed.
arxiv   +1 more source

Molecular Mechanisms of Aldehyde Toxicity: A Chemical Perspective

open access: yesChemical Research in Toxicology, 2014
Aldehydes are electrophilic compounds to which humans are pervasively exposed. Despite a significant health risk due to exposure, the mechanisms of aldehyde toxicity are poorly understood.
R. LoPachin, T. Gavin
semanticscholar   +1 more source

Polyvinyl alcohol cross-linked with two aldehydes [PDF]

open access: yes, 1982
A film forming polyvinyl alcohol resin is admixed, in aqueous solution, with a dialdehyde crosslinking agent which is capable of crosslinking the polyvinyl alcohol resin and a water soluble acid aldehyde containing a reactive aldehyde group capable of ...
Hsu, L. C.   +3 more
core   +1 more source

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