Results 21 to 30 of about 76,878 (276)

Well-posedness analysis of multicomponent incompressible flow models [PDF]

open access: yes, 2020
In this paper, we extend our study of mass transport in multicomponent isothermal fluids to the incompressible case. For a mixture, incompressibility is defined as the independence of average volume on pressure, and a weighted sum of the partial mass ...
Bothe, Dieter, Druet, Pierre-Etienne
core   +4 more sources

One-pot multicomponent synthesis of 2,3-dihydropyrans: new access to furanose–pyranose 1,3-C–C-linked-disaccharides [PDF]

open access: yes, 2009
An efficient synthesis of 2,3-dihydropyrans starting from different terminal alkynes was developed. The 2,3-dihydropyrans were obtained in a few minutes through a microwave-assisted multicomponent enyne cross-metathesis/hetero-Diels–Alder reaction ...
Armstrong   +28 more
core   +1 more source

Electrochemical Synthesis of Sulfonamides in Single‐Pass Flow

open access: yesChemElectroChem, 2023
An electrochemical multicomponent synthesis of sulfonamides at room temperature in single‐pass flow is presented. In contrast to batch‐type electrolysis, an undivided flow cell setup with a stainless‐steel cathode and either a boron‐doped diamond (BDD ...
Johannes Schneider   +2 more
doaj   +1 more source

The HPx software for multicomponent reactive transport during variably-saturated flow: Recent developments and applications [PDF]

open access: yes, 2018
HPx is a multicomponent reactive transport model which uses HYDRUS as the flow and transport solver and PHREEQC-3 as the biogeochemical solver.
Jacques, Diederik   +3 more
core   +2 more sources

Molecular Networks in Dynamic Multilevel Systems [PDF]

open access: yes, 2018
Dynamic multilevel systems can be assembled from molecular building blocks through two or more reversible reactions that form covalent bonds. Molecular networks of dynamic multilevel systems can exhibit different connectivities between nodes.
Cabezudo, Ignacio   +4 more
core   +1 more source

Exploiting the Nucleophilicity of the Nitrogen Atom of Imidazoles: One-Pot Three-Component Synthesis of Imidazo-Pyrazines

open access: yesMolecules, 2019
A novel one-pot multicomponent reaction to synthesize substituted imidazopyrazines is described. In brief, 1H-(imidazol-5-yl)-N-substituted methanamines react with aldehydes and isocyanides in methanol at room temperature to give imidazopyrazine ...
Ubaldina Galli   +7 more
doaj   +1 more source

Coulomb crystal mass spectrometry in a digital ion trap [PDF]

open access: yes, 2015
We present a mass spectrometric technique for identifying the masses and relative abundances of Coulomb-crystallized ions held in a linear Paul trap.
Deb, Nabanita   +6 more
core   +2 more sources

Diastereoselective three-component synthesis of beta-amino carbonyl compounds using diazo compounds, boranes, and acyl imines under catalyst-free conditions [PDF]

open access: yes, 2014
Diazo compounds, boranes, and acyl imines undergo a three-component Mannich condensation reaction under catalyst-free conditions to give the anti β-amino carbonyl compounds in high diastereoselectivity.
Luan, Yi   +4 more
core   +1 more source

A fast, low-memory, and stable algorithm for implementing multicomponent transport in direct numerical simulations [PDF]

open access: yes, 2019
Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume   +4 more
core   +2 more sources

From sequence-defined macromolecules to macromolecular pin codes [PDF]

open access: yes, 2020
Dynamic sequence-defined oligomers carrying a chemically written pin code are obtained through a strategy combining multicomponent reactions with the thermoreversible addition of 1,2,4-triazoline-3,5-diones (TADs) to indole substrates.
Badi, Nezha   +4 more
core   +1 more source

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