Results 81 to 90 of about 11,747 (233)

Towards Carbon Neutralization: Clean and Efficient Use of Coal

open access: yesCarbon Neutralization, Volume 5, Issue 1, January 2026.
This paper provides a comprehensive exploration of the clean and efficient utilization of coal resources, with a particular emphasis on the potential of coal chemical technology, carbon materials, and CCUS technology, and the opening up of innovative pathways for the utilization of coal resources.
Xin Wen   +6 more
wiley   +1 more source

A Novel Class of Small Molecule Agonists with Preference for Human over Mouse TLR4 Activation. [PDF]

open access: yesPLoS ONE, 2016
The best-characterized Toll-like receptor 4 (TLR4) ligands are lipopolysaccharide (LPS) and its chemically modified and detoxified variant, monophosphoryl lipid A (MPL).
Jason D Marshall   +13 more
doaj   +1 more source

Thermal photons as a measure for the rapidity dependence of the temperature [PDF]

open access: yes, 2006
The rapidity distribution of thermal photons produced in Pb+Pb collisions at CERN-SPS energies is calculated within scaling and three- fluid hydrodynamics. It is shown that these scenarios lead to very different rapidity spectra.
Dumitru, Adrian   +5 more
core  

Atomic mutagenesis of stop codon nucleotides reveals the chemical prerequisites for release factor-mediated peptide release. [PDF]

open access: yes, 2018
Termination of protein synthesis is triggered by the recognition of a stop codon at the ribosomal A site and is mediated by class I release factors (RFs).
Clementi, Nina   +11 more
core   +3 more sources

One‐Pot Morita–Baylis–Hillman/Allylic Substitution in Deep Eutectic Solvents: Access to γ‐Hydroxy Derivatives via Sequential CC and CX (X = P, N, S, B, Si) Bond Formation

open access: yesChemSusChem, Volume 19, Issue 1, January 2026.
Sustainable one‐pot synthesis of functionalized γ‐hydroxy derivatives in deep eutectic solvents. A green, sequential CC/CX bond‐forming strategy enables diverse γ‐hydroxy derivatives via Morita–Baylis–Hillman and nucleophilic functionalization in ChCl/Gly deep eutectic solvent.
Marina Ramos‐Martín   +3 more
wiley   +1 more source

Phosphoranaloga von Aminosäuren und Peptiden: β-Lactam-Grundgerüst mit Aminomethylphosphonsäure

open access: yesCHIMIA, 1984
Syntheses of β-lactams containing aminomethylphosphonate involving the Ugi-reaction of diethylisocyanmethylphosphonate 4 with carbonyl compounds 3 and β-alanine are reported.
Janusz Rachoń
doaj   +1 more source

Multicomponent synthesis of 4,4-dimethyl sterol analogues and their effect on eukaryotic cells [PDF]

open access: yes, 2014
Most sterols, such as cholesterol and ergosterol, become functional only after the removal of the two methyl groups at C-4 from their biosynthetic precursors.
Alonso, Fernando   +7 more
core   +1 more source

Innovative Fluorescent Probes to Track Lipid Droplets and Endoplasmic Reticulum Dynamics

open access: yesAdvanced Sensor Research, Volume 4, Issue 12, December 2025.
Eco‐designed fluorescent probes enable selective imaging of lipid droplets and endoplasmic reticulum dynamics. Through green multicomponent synthesis, the probes exhibit high photostability and distinct subcellular localization. Their targeting selectivity arises from molecular geometry and microenvironmental adaptability, offering sustainable tools ...
Diana García‐García   +5 more
wiley   +1 more source

In Silico and in Vitro Studies of Fluorinated Chroman-2-Carboxilic Acid Derivatives as an Anti-tubercular Agent

open access: yesFolia Medica, 2018
Background: Despite the use of traditional method, Ugi reaction currently is a well-established multicomponent reaction. Chromane motif itself possesses a variety of biological functions.
Kapadiya Khushal M.   +3 more
doaj   +1 more source

Consecutive hydrazino-Ugi-azide reactions: synthesis of acylhydrazines bearing 1,5-disubstituted tetrazoles

open access: yesBeilstein Journal of Organic Chemistry, 2017
Isocyanide-based multicomponent reactions (IMCRs) allow the construction of relatively complex molecules through a one-pot synthesis. The combination of IMCRs in a consecutive or sequential fashion further extends the complexity of the molecules obtained.
Angélica de Fátima S. Barreto   +2 more
doaj   +1 more source

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