Results 11 to 20 of about 995,504 (317)

Effects of chloride ions in acid-catalyzed biomass dehydration reactions in polar aprotic solvents [PDF]

open access: yesNature Communications, 2019
Despite the potential advantages of using polar aprotic solvents for biomass upgrading reactions, fundamental understanding of these solvation effects is limited at present.
Max A. Mellmer   +11 more
doaj   +5 more sources

Proton solvation in protic and aprotic solvents

open access: yesJournal of Computational Chemistry, 2016
Protonation pattern strongly affects the properties of molecular systems. To determine protonation equilibria, proton solvation free energy, which is a central quantity in solution chemistry, needs to be known. In this study, proton affinities (PAs), electrostatic energies of solvation, and pKA values were computed in protic and aprotic solvents.
Emanuele Rossini, E. Knapp
semanticscholar   +5 more sources

Polymer Chemistry Applications of Cyrene and its Derivative Cygnet 0.0 as Safer Replacements for Polar Aprotic Solvents. [PDF]

open access: yesChemSusChem, 2021
This study explores a binary solvent system composed of biobased Cyrene and its derivative Cygnet 0.0 for application in membrane technology and in biocatalytic synthesis of polyesters.
Milescu RA   +8 more
europepmc   +2 more sources

CO2 Electroreduction in Organic Aprotic Solvents: A Mini Review

open access: yesJournal of Chemistry, 2022
An annual increase of CO2 concentrations in the atmosphere causes global environmental problems, addressed by systematic research to develop effective technologies for capturing and utilizing carbon dioxide.
Оrest Kuntyi   +2 more
doaj   +2 more sources

Effects of solvent and structure on the reactivity of 2-substituted nicotinic acids with diazodiphenylmethane in aprotic solvents [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
The rate constants for the reactions of diazodiphenylmethane (DDM) with 2-substituted nicotinic acids in nine aprotic solvents at 30°C were determined. The obtained second order rate constants in aprotic solvents, were correlated using the Kamlet-Taft
Drmanić Saša Ž.   +2 more
doaj   +3 more sources

Study on synthesis of ursodeoxycholic acid by reduction of 7-ketolithocholic acid in double aprotic solvents and molecular simulations [PDF]

open access: yesBioresources and Bioprocessing, 2023
Ursodeoxycholic acid (UDCA) is not only safer than chenodeoxycholic acid in the treatment of hepatobiliary diseases, but also has a wide range of applications in Acute Kidney Injury and Parkinson’s Disease.
Mohan Dai   +4 more
doaj   +2 more sources

Spectrophotometric determination of the acidity constants of calcon in water and mixed water-organic solvents [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
The acid-base properties of calcon (1-(2-hydroxy-1-naphthylazo)-2- -naphthol-4-sulfonic acid) in water and mixed water-organic solvents at 25 °C at an ionic strength of 0.10 M are studied by a multiwavelength spectrophotometric method.
Mazloum-Ardakani Mohammad   +4 more
doaj   +5 more sources

A carbohydrate-anion recognition system in aprotic solvents. [PDF]

open access: yesChem Asian J, 2014
AbstractA carbohydrate–anion recognition system in nonpolar solvents is reported, in which complexes form at the B‐faces of β‐D‐pyranosides with H1‐, H3‐, and H5‐cis patterns similar to carbohydrate–π interactions. The complexation effect was evaluated for a range of carbohydrate structures; it resulted in either 1:1 carbohydrate–anion complexes, or 1 ...
Ren B, Dong H, Ramström O.
europepmc   +4 more sources

Insights into impact of polar protic and aprotic solvents on bioactive features of 3-(Dimethylaminomethyl)-5-nitroindole: A DFT study and molecular dynamics simulations. [PDF]

open access: yesPLoS ONE
Polar protic and aprotic solvents can effectively simulate the maturation of breast carcinoma cells. Herein, the influence of polar protic solvents (water and ethanol) and aprotic solvents (acetone and DMSO) on the properties of 3-(dimethylaminomethyl)-5-
Stève-Jonathan Koyambo-Konzapa   +7 more
doaj   +2 more sources

Compensation of London Dispersion in the Gas Phase and in Aprotic Solvents.

open access: yesAngewandte Chemie - International Edition, 2019
The importance of London dispersion for structure and stability of molecules with less than about 200 atoms has been established in recent years but the quantitative understanding is still largely based on computations because of a persistent lack of ...
R. Pollice   +3 more
semanticscholar   +3 more sources

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