Results 41 to 50 of about 1,209 (177)

A Spectral Matching Algorithm Based on the Wasserstein Metric

open access: yesJournal of Chemometrics, Volume 40, Issue 6, June 2026.
ABSTRACT Through visual inspection, scientists can easily judge the similarity of pairs of spectra from different sources, whether they are experimental measurements, spectra libraries, or spectra calculations. Spectral similarity is recognized when the peak patterns appear similar, even if the peak positions are shifted or the peak amplitudes are ...
Klaus Neymeyr   +7 more
wiley   +1 more source

Organometallic catalysis: some contributions to organic synthesis

open access: yesQuímica Nova, 2003
In the present paper some general aspects of metal complex catalysis and its applications for oxyfunctionalization of various olefins, including naturally occurring ones, via selective oxidation, hydroformylation and alkoxycarbonylation are discussed.
Elena V. Gusevskaya
doaj   +1 more source

Structural‐to‐Functional Complexity Transformations Enabled by Bridged Polyheterocycles: Access to Cis‐1,3‐Diamines and Amino‐Alcohols

open access: yesChemistryEurope, Volume 4, Issue 6, June 2026.
Polycyclic intermediates enable stereocontrolled synthesis of densely functionalized cis‐1,3‐diamine and amino alcohol carbocycles and heterocycles via structural‐to‐functional complexity transformations from low‐complexity starting material. Cis‐1,3‐functionalized carbocycles and saturated heterocycles are ubiquitous motifs in natural products ...
Jiayi Zhu   +2 more
wiley   +1 more source

Cyclodextrin-grafted polymers functionalized with phosphanes: a new tool for aqueous organometallic catalysis

open access: yesBeilstein Journal of Organic Chemistry, 2014
New cyclodextrin (CD)-grafted polymers functionalized with water-soluble phosphanes were synthesized in three steps starting from polyNAS. Once characterized by NMR spectroscopy and size-exclusion chromatography, they were used as additives in Rh ...
Jonathan Potier   +5 more
doaj   +1 more source

Harnessing Fatty Acid By‐Products for Diabetes Management: Insights From Nutritional and Biological Research

open access: yeseFood, Volume 7, Issue 3, June 2026.
Bioactive fatty acids from agro‐industrial byproducts are highlighted as a promising avenue for managing diabetes in this review, which aims to develop targeted interventions for optimal utilization and therapeutic benefits. ABSTRACT Diabetes mellitus (DM), influenced by multifaceted factors, creates a complex imbalance within the body. Nutrition plays
Youssef Elouafy   +7 more
wiley   +1 more source

Selective Transfer Hydrogenation of Polyenes to Monoenes Catalysed by Shvo's Catalyst

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
We report the reduction of polyenes to monoenes with near‐perfect selectivities at full conversion with isopropanol as hydrogen source. The reaction is catalysed by Shvo's catalyst and the selectivity towards conjugation, semihydrogenation or full hydrogenation can be adjusted via the reaction temperature.
Justus Diekamp   +6 more
wiley   +1 more source

Micro–Mesoporous Ferrierite: Strategies for Tuning the Accessibility of a Peculiar Zeolite

open access: yesChemCatChem, Volume 18, Issue 10, 27 May 2026.
The anisotropic structure of ferrierite (FER) zeolite makes challenging the increase of catalyst effectiveness by hierarchical porosity. The pore mouth location of the active sites for butene isomerization requires a fine balance between development of external surface and retention of shape selectivity.
Jonathan Fabian Sierra‐Cantor   +3 more
wiley   +1 more source

Extending the Boundaries With Electron‐Rich Tris(pyridyl)borates in Classical Silver and Gold Carbonyl Complexes

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
Electron‐rich tris(pyridyl)borate stabilizes rare silver(I) and gold(I) carbonyl complexes. The resulting Ag–CO and Au–CO species show record‐low CO stretching frequencies, revealing enhanced metal→CO π‐backbonding. Structural and computational analyses highlight strong ligand donation, steric protection, and distinct bonding behaviors between the two ...
Mukundam Vanga   +3 more
wiley   +1 more source

Azobenzene‐Functionalized Ionic Liquids: Light‐Responsive Surfactants With Catalytic Potential

open access: yesChemistryOpen, Volume 15, Issue 5, May 2026.
Surface‐active imidazolium‐based ionic liquids containing an azobenzene group exhibit different micellization properties upon photoisomerization. Applying a sulfonate tag to the azobenzene moiety profoundly affects the physicochemical behavior of both isomers in water.
Markus Hegelmann   +7 more
wiley   +1 more source

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

open access: yesJournal of Polymer Science, Volume 64, Issue 9, Page 1860-1894, 1 May 2026.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba   +4 more
wiley   +1 more source

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