Results 121 to 130 of about 10,994 (228)

Solvent‐Controlled Electrochemical Cyclization of Areneazo‐2‐(2‐nitro)propanes to Benzo[c]cinnolines

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
Solvent‐mediated redox pathway control enables the first electrochemical cyclization of areneazo‐2‐(2‐nitro)propanes to benzo[c]cinnolines. Mixed solvent systems containing hexafluoroisopropanol (HFIP) and MeOH additives widen the redox potential gaps and stabilize diazonium intermediates via hydrogen bonding, favoring oxidative intramolecular ...
Chohee Lee   +3 more
wiley   +1 more source

Microwave-assisted extraction of Garcinia × mangostana L. and its ‘Mesta’ cultivar rinds: Physicochemical and antioxidant properties analyzed using multiple chemometric algorithms

open access: yesFood Chemistry Advances
Mangosteen rind is an underutilized by-product rich in bioactive compounds. This study assessed the effect of microwave-assisted extraction (MAE) using different protic and aprotic solvents on the rinds of common mangosteen (Garcinia × mangostana L.) and
Peir Shinn Hew   +4 more
doaj   +1 more source

Acrylamide Production Using Encapsulated Nitrile Hydratase from \u3cem\u3ePseudonocardia thermophila\u3c/em\u3e in a Sol–gel Matrix [PDF]

open access: yes, 2014
The cobalt-type nitrile hydratase from Pseudonocardia thermophila JCM 3095 (PtNHase) was successfully encapsulated in tetramethyl orthosilicate sol–gel matrices to produce a PtNHase:sol–gel biomaterial.
Elgren, Timothy E.   +4 more
core   +1 more source

Non‐Covalent Interactions Enable Hierarchical Self‐Assembly in TeTrazine‐Bearing Systems: From Soft Matter to Mesogens

open access: yesChemSystemsChem, Volume 8, Issue 3, May 2026.
This study focuses on the supramolecular self‐assembly of a newly developed family of compounds featuring s‐tetrazine. In particular, we highlight structure‐property relations and how gelation and mesogenic properties can be directed as a consequence of different side chains introduced in the system.
Lucrezia Trevisan   +9 more
wiley   +1 more source

Molecular structural, vibrational spectra, dual descriptor, electronic transition and biological evaluations of ethyl 4‑hydroxy-3-methoxycinnamate using density functional theory

open access: yesChemical Physics Impact
Quantum chemical, spectroscopic and bioactivity studies of pharmacologically active Ethyl 4‑hydroxy 3‑methoxy ethyl cinnamate (EHMC) were investigated.
G. Bharathy   +4 more
doaj   +1 more source

Proton Solvation in Water and Selected Organic Solvents: A Critical Assessment of Experimental and Theoretical Approaches to Extend the Solvent‐Independent Unified Acidity Scale

open access: yesChemPhysChem, Volume 27, Issue 8, 28 April 2026.
The (solvated) proton is the most elusive chemical entity, both by experimental and by theoretical means. Visit this special exhibition, explore the proton´s structure and chemical potential in water and various organic solvents. Let yourself be fascinated by its many facets and be there when it is unified.
Regina Stroh   +4 more
wiley   +1 more source

A novel DHP-NH2 fluorescent dye for the determination of water content in organic solvents, rice, and aspirin: DFT calculations

open access: yesSensors International
A novel aminodihydropyridine derivative (DHP-NH2) was synthesized from hydrazine via a tandem cyclotrimerization of methyl propiolate. DHP-NH2 distinguishably exhibited either strong fluorescence in aprotic solvents or weak fluorescence in protic ...
Kittiporn Nakprasit   +5 more
doaj   +1 more source

Synthesis, crystal structure and physico-chemical properties of 3,3’-[(4-hydroxyphenyl)methyl] bis-(4-hydroxy-2H-chromen-2-one)

open access: yesActa Chimica Slovenica, 2014
The compound 3,3’-[(4-Hydroxyphenyl)methyl]bis-(4-hydroxy-2H-chromen-2-one) was synthesized by the Knoevenagel reaction. Crystals, suitable for X-ray data collection were grown by slow evaporation from an ethanol solution.
Denitsa Elenkova   +3 more
doaj  

The Relationship Between Catalyst and Solvent in Hydrogenation via Condensed Phase Heterogeneous Catalysis

open access: yesChemSusChem, Volume 19, Issue 8, 28 April 2026.
Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd   +3 more
wiley   +1 more source

The Multifaceted Legacy of Thalidomide: Chemistry and Biology Driving Modern Drug Design

open access: yesChemMedChem, Volume 21, Issue 7, 14 April 2026.
Thalidomide serves as a molecular nexus linking chemistry and biology: advances in synthesis and structural understanding enable protein degradation technologies, while its immunomodulatory activity underpins anti‐inflammatory and anticancer therapies.
Konstantina Nikovia   +4 more
wiley   +1 more source

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