Results 11 to 20 of about 2,122,800 (297)

Comparison of the Reaction Characteristics of Different Fuels in the Supercritical Multicomponent Thermal Fluid Generation Process

open access: yesEnergies
Supercritical multicomponent thermal fluid technology is a new technology with obvious advantages in offshore heavy oil recovery. However, there is currently insufficient understanding of the generation characteristics of the supercritical multicomponent
Qiang Fu   +5 more
doaj   +2 more sources

Revealing the solid-state reaction process among multiphase multicomponent ceramic during ablation

open access: yesAdvanced Powder Materials
Multiphase design is a promising approach to achieve superior ablation resistance of multicomponent ultra-high temperature ceramic, while understanding the ablation mechanism is the foundation.
Ziming Ye   +7 more
doaj   +2 more sources

Advances in Multicomponent Petasis Reaction: A 2020-2025 Review [PDF]

open access: yesOrbital: The Electronic Journal of Chemistry
The Petasis–Boronic multicomponent reaction has emerged as a practical and versatile method for building structurally complex molecules, particularly frameworks bearing newly formed stereocenters.
Luis Fernando Barbosa Duarte
doaj   +2 more sources

Multicomponent Reactions: “Kinderleicht” [PDF]

open access: yesJournal of Chemical Education, 2020
A demonstration experiment of the synthesis of a novel tetrazole derivative via a multicomponent reaction (Ugi tetrazole four component reaction, UT-4CR) bearing a luminol moiety and a subsequent exploitation of its chemiluminescent properties is described.
Constantinos G. Neochoritis   +3 more
openaire   +2 more sources

Chemoenzymatic Multicomponent Synthesis of Nirmatrelvir [PDF]

open access: yes, 2022
We report a new synthesis of the Covid-19 drug nirmatrelvir featuring a highly enantioselective biocatalytic desymmetrization and a diastereoselective multicomponent reaction as the key steps.
Ashleigh J., Burke   +11 more
core   +2 more sources

Pseudo-multicomponent reactions

open access: yesRSC Advances, 2023
Pseudo-MCRs are domino-type one-pot processes that involve combinations of at least three reactants (similarly to normal MCRs) but in which one of them is stoichiometrically duplicated (or more) and hence takes part into two reaction steps (or more).
Julio C. Flores-Reyes   +4 more
openaire   +2 more sources

Rigorous Multicomponent Reactive Separations Modelling : Complete Consideration of Reaction-Diffusion Phenomena [PDF]

open access: yes, 2010
This paper gives the first step of the development of a rigorous multicomponent reactive separation model. Such a model is highly essential to further the optimization of acid gases removal plants (CO2 capture, gas treating, etc.) in terms of size and ...
Ahmadi, Aras   +20 more
core   +1 more source

Multicomponent Reactions [PDF]

open access: yesMolecules, 2019
Multicomponent Reactions appear to be ideal for any form of synthesis, because of their numerous advantages in terms of sustainability and selectivity in building up complex molecular architectures, with high molecular diversity. This Special Issue collects seven contributions which expand our knowledge about Multicomponent Reactions, providing a good ...
openaire   +4 more sources

Polymer-Supported Dioxidovanadium(V) Complex-Based Heterogeneous Catalyst for Multicomponent Biginelli Reaction Producing Biologically Active 3,4-Dihydropyrimidin-2-(1H)-ones

open access: yes, 2023
Dioxidovanadium(V) complex [VVO2(sal-aebmz)] (1) (where Hsal-aebmz = Schiff base derived from the condensation of salicylaldehyde and 2-aminoethylbenzimidazole) has been immobilized on chloromethylated polystyrene (PS-Cl) cross-linked with divinylbenzene
Kaushik Ghosh   +3 more
core   +1 more source

Multicomponent reactions II [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2014
The concept of multicomponent reactions (MCR) [1] has been around in organic chemistry since the very early days. Indeed, the first example known in literature, the Strecker synthesis of α-aminonitriles [2], has been developed into an industrial process for the production of methionine in an annual scale of several hundreds of thousand tons per year ...
openaire   +6 more sources

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