Results 31 to 40 of about 23,224 (282)

Sustainable Access to Acridin-9-(10H)ones with an Embedded m-Terphenyl Moiety Based on a Three-Component Reaction

open access: yesMolecules, 2020
A Ce(IV)-catalyzed three-component reaction between chalcones, anilines and β-ketoesters followed by a microwave-assisted thermal cyclization afforded 1,3-diaryl-1,2-dihydroacridin-9(10H)-ones.
Damiano Rocchi   +3 more
doaj   +1 more source

Synthesis of Depsipeptides via Isocyanide-Based Consecutive Bargellini–Passerini Multicomponent Reactions

open access: yesSynOpen, 2021
An efficient and straightforward approach has been established for the preparation of a new class of depsipeptide structures via isocyanide-based consecutive Bargellini–Passerini multicomponent reactions.
Hassan Farhid   +3 more
doaj   +1 more source

Multicomponent Reactions of Isocyanides for the Preparation of Low Molecular Weight Gelators: Preliminary Studies

open access: yesChemistry Proceedings, 2021
Low molecular weight gelators, LMWGs, are small molecules that can self-associate in organic solvents or in water to form fibrous supramolecular architectures and three-dimensional networks that present important applications in several fields.
José L. Ramiro   +2 more
doaj   +1 more source

Isocyanides: Promising Functionalities in Bioorthogonal Labeling of Biomolecules

open access: yesFrontiers in Chemistry, 2021
Isocyanides have drawn increasing attention in biological applications due to their attractive properties and unique reactivities, which can undergo various reactions, such as multicomponent reactions, α-addition reactions, [4 + 1] cycloaddition ...
Yuchen Zhu   +6 more
doaj   +1 more source

Multicomponent Reactions (MCRs) [PDF]

open access: yes, 2019
Multicomponent reactions (MCRs) involving three or more components have good pot, atom and step economy. There are dozens of well-known MCRs in literature. Selective examples of newly introduced MCRs, high–order MCRs, MCRs followed by post-condensation modifications, and consecutive MCRs are presented in this chapter.
Wei Zhang, Wen-Bin Yi
openaire   +2 more sources

Fluorene-Based Multicomponent Reactions

open access: yesSynlett, 2021
AbstractFluorene and fluorenone are privileged structures with extensive utility in both materials science and drug discovery. Here, we describe syntheses of those moieties through isocyanide-based multicomponent reactions (IMCRs) and the incorporation of the products in diverse and complex derivatives that can be further utilized.
Giasemi K. Angeli   +5 more
openaire   +2 more sources

Enantioselective Ugi and Ugi-azide reactions catalyzed by anionic stereogenic-at-cobalt(III) complexes

open access: yesNature Communications, 2022
Ugi reactions are well known multicomponent reactions that allow the preparation of a variety of chemical compounds including peptides, heterocyclic compounds, or natural products.
Bing-Bing Sun   +8 more
doaj   +1 more source

Synthesis of (macro)heterocycles by consecutive/repetitive isocyanide-based multicomponent reactions

open access: yesBeilstein Journal of Organic Chemistry, 2019
Isocyanide-based multicomponent reactions are a versatile tool in the synthesis of heterocycles. This review describes recently developed approaches based on the combination of consecutive or repetitive isocyanide-based multicomponent reactions for the ...
Angélica de Fátima S. Barreto   +1 more
doaj   +1 more source

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych   +7 more
wiley   +1 more source

Investigation of Iron‐Aluminide‐Like Phase Composition in Complex Concentrated Fe32Cu12Ni11Ti16Al29 Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi   +4 more
wiley   +1 more source

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