Results 21 to 30 of about 26,762 (251)

Divergent Synthesis of Novel Five-Membered Heterocyclic Compounds by Base-Mediated Rearrangement of Acrylamides Derived from a Novel Isocyanide-Based Multicomponent Reaction

open access: yesMolecules, 2011
We have recently reported a novel multicomponent reaction between arylacetic acids and isocyanides, affording α-acyloxyacrylamides through an unusual mechanism.
Renata Riva, Andrea Basso, Luca Banfi
doaj   +1 more source

Bio-Catalysis in Multicomponent Reactions [PDF]

open access: yesMolecules, 2020
Enzyme catalysis is a very active research area in organic chemistry, because biocatalysts are compatible with and can be adjusted to many reaction conditions, as well as substrates. Their integration in multicomponent reactions (MCRs) allows for simple protocols to be implemented in the diversity-oriented synthesis of complex molecules in chemo ...
Ndze Denis Jumbam, Wayiza Masamba
openaire   +3 more sources

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   +1 more source

A Novel Multi-Component Reaction to Imidazo[4,5-g]-quinazolines

open access: yesMolecules, 2013
The trace impurities discovered after extended storage of a 5-amino- benzimidazole library were determined as imidazo[4,5-g]quinazoline derivatives by extensive spectroscopic data analysis. The formation of this highly aromatic heterocyclic ring involved
Qianqian Zhang, Li Li, Bo Liu, Gang Liu
doaj   +1 more source

Tetrazoles via Multicomponent Reactions [PDF]

open access: yesChemical Reviews, 2019
Tetrazole derivatives are a prime class of heterocycles, very important to medicinal chemistry and drug design due to not only their bioisosterism to carboxylic acid and amide moieties but also to their metabolic stability and other beneficial physicochemical properties.
Constantinos G. Neochoritis   +2 more
openaire   +3 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   +1 more source

Steroid diversification by multicomponent reactions [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2019
Reports on structural diversification of steroids by means of multicomponent reactions (MCRs) have significantly increased over the last decade. This review covers the most relevant strategies dealing with the use of steroidal substrates in MCRs, including the synthesis of steroidal heterocycles and macrocycles as well as the conjugation of steroids to
Leslie Reguera   +3 more
openaire   +4 more sources

Synthesis of structurally diverse 3,4-dihydropyrimidin-2(1H)-ones via sequential Biginelli and Passerini reactions

open access: yesBeilstein Journal of Organic Chemistry, 2017
The Biginelli reaction was combined with the Passerini reaction for the first time in a sequential multicomponent tandem reaction approach. After evaluation of all possible linker components and a suitable solvent system, highly functionalized ...
Andreas C. Boukis   +2 more
doaj   +1 more source

Efficient Multicomponent Synthesis of Diverse Antibacterial Embelin-Privileged Structure Conjugates

open access: yesMolecules, 2020
A library of embelin derivatives has been synthesized through a multicomponent reaction from embelin (1), aldehydes and privileged structures such as 4-hydroxycoumarin, 4-hydroxy-2H-pyran-2-one and 2-naphthol, in the presence of InCl3 as catalyst.
Pedro Martín-Acosta   +7 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

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