Results 11 to 20 of about 5,170,686 (370)

Electrosynthesis Using Carboxylic Acid Derivatives: New Tricks for Old Reactions.

open access: yesAccounts of Chemical Research, 2020
Electrosynthetic organic chemistry is an old discipline that takes its root in Faraday's seminal works. The field has a rich history and is in the midst of a renaissance, due to the growing impetus of the chemical community to develop greener, more ...
M. Leech, K. Lam
semanticscholar   +1 more source

Study of the effect of microwave-ray on some carboxylic acids containing hydroxyl group at α – carbon [PDF]

open access: yesمجلة التربية والعلم, 1999
: The effect of Microwave-ray was studied on the three mono carboxylic acids contains hydroxyl group (OH) at α – carbon in the solid state at different times. these carboxylic acids are Glycolic acid, Mandilic acid, Benzilic acid.
Ahmed Sadoon
doaj   +1 more source

Nickel-Catalyzed Decarbonylative Amination of Carboxylic Acid Esters.

open access: yesJournal of the American Chemical Society, 2020
The reaction of carboxylic acid derivatives with amines to form amide bonds has been the most widely used transformation in organic synthesis over the past century.
Christian A. Malapit   +4 more
semanticscholar   +1 more source

NMR spectroscopy of Cu(II) complexes with acrylamide and sodium acrylate copolymer and ω-amino acids

open access: yesЖурнал Белорусского государственного университета: Химия, 2021
Macromolecular complexes of acrylamide and sodium acrylate copolymer with microelements, including Cu(II), may form at preparation of crop protection and stimulation compositions, where the copolymer serves as an adhesive, water-retaining and film ...
Dmitry L. Kudryavsky   +4 more
doaj   +1 more source

Carboxylic acids and light interact to affect nanoceria stability and dissolution in acidic aqueous environments

open access: yesBeilstein Journal of Nanotechnology, 2023
Cerium atoms on the surfaces of nanoceria (i.e., cerium oxide in the form of nanoparticles) can store or release oxygen, cycling between Ce3+ and Ce4+; therefore, they can cause or relieve oxidative stress within living systems.
Matthew L. Hancock   +2 more
doaj   +1 more source

Using pyrimidinecarboxylic acids as growth stimulants for Rhododendron ledebourii Pojark and Rhododendron smirnowii Trautv.

open access: yesActa Agriculturae Slovenica, 2023
Synthesised organic compounds of pyrimidinecarboxylic acids are characterised by high biological activity, even when their concentrations are low. These compounds, when applied to the seeds of Rhododendron, a genus of woody plants, with concentrations of
Tatiana V. VOSTRIKOVA   +3 more
doaj   +1 more source

Monte Carlo simulation of molecular dynamics for amino acid production from carboxylic acid via C-14 beta-decay [PDF]

open access: yes, 2021
To study the chemical origin of life, we investigated the amino acid production probability from radiocarbon (C-14)-containing carboxylic acid via beta-decay using a newly developed Monte Carlo simulator for molecular dynamics calculation. Using the simulation, we calculated the dynamical trajectory of N-14 recoiled via C-14 beta-decay in [3-C-14 ...
arxiv   +1 more source

Probing Functionalities and Acidity of Calcined Phenylene-Bridged Periodic Mesoporous Organosilicates Using Dynamic Nuclear Polarization NMR, Diffuse Reflectance Infrared Fourier Transform Spectroscopy, and X-ray Photoelectron Spectroscopy [PDF]

open access: yesJ. Phys. Chem. C 124 (2020) 6110-6120, 2020
Owing to their high surface area, their high stability, and their hydrophobicity, periodic mesoporous organosilica (PMO) materials represent promising catalytic support for environmentally friendly chemical processes in water. We investigate here how the calcination of PMO material with benzene linkers (PMOB) allows its functionalization.
arxiv   +1 more source

Oligomerization of Indole Derivatives with Incorporation of Thiols

open access: yesMolecules, 2008
: Two molecules of indole derivative, e.g. indole-5-carboxylic acid, reacted with one molecule of thiol, e.g. 1,2-ethanedithiol, in the presence of trifluoroacetic acid to yield adducts such as 3-[2-(2-amino-5-carboxyphenyl)-1-(2-mercaptoethylthio)ethyl]-
Jarl E.S. Wikberg   +6 more
doaj   +1 more source

The effects of carboxylic acids on the aqueous dispersion and electrophoretic deposition of ZrO2 [PDF]

open access: yesJournal of the European Ceramic Society, Volume 32, Issue 1, 2012, Pages 235-244, 2013
The agglomeration, electrokinetic properties and electrophoretic deposition behaviour of aqueous suspensions of ZrO2 with carboxylic acid additives were studied in comparison with conventional pH adjustment. It was found that citric acid imparted negative zeta-potential values and electrosteric stabilisation to particles in suspensions at all pH levels.
arxiv   +1 more source

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