Results 71 to 80 of about 12,453 (230)

Synthesis, characterization and the role of ionic radii on the mechanistic of solvothermal for polyazine PtIV complexes: Reduction PtIV to PtII, DFT, X-ray single crystal and anticancer studies

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2018
Polypyridyl based on triazine and pyrazine rings with Pt4+, including 2,4,6-tris(2-pyridyl)-1,3,5-triazine (TPT, L1) and 2,3,5,6-tetra(2-pyridyl)-1,4-triazine (TPP, L2), was reported.
Waleed H. Al-Assy   +3 more
doaj   +3 more sources

solvolysis

open access: yes, 2014
Citation: 'solvolysis' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.S05762 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

New Polyurethanes with a polyurea matrix [PDF]

open access: yes, 2012
Based on a previously published (Peshkov 2011) synthesis route of nanoscale oligourea dispersion polyols (NODP) a new type of polyurethanes with a polyurea matrix was developed.
Behrendt, Gerhard   +3 more
core   +1 more source

Novel Recyclable Hierarchical Carbon Fiber/Epoxy Composites: Preserving Fiber Length and Orientation Using Elium

open access: yesPolymer Composites, EarlyView.
Schematic illustration of a hierarchical recycling approach that preserves reinforcing fiber orientation. ABSTRACT Current recycling methods for polymer matrix composites produce short, unoriented carbon fibers, limiting their use to intermediate‐strength applications.
Carol Winnifred Rodricks   +3 more
wiley   +1 more source

Comparison of Strategies for the Determination of Sterol Sulfates via GC-MS Leading to a Novel Deconjugation-Derivatization Protocol

open access: yesMolecules, 2019
Sulfoconjugates of sterols play important roles as neurosteroids, neurotransmitters, and ion channel ligands in health and disease. In most cases, sterol conjugate analysis is performed with liquid chromatography-mass spectrometry.
Julia Junker   +6 more
doaj   +1 more source

Asymmetric Transformations of α,β‐Unsaturated Oxazolidinones Catalyzed by C2‐Symmetric Chiral Iron Triad Complexes

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
This review highlights the evolution of highly enantioselective oxazolidinone transformations enabled by C2‐symmetric ligands, with emphasis on chiral iron triad complexes as cost‐effective, environmentally benign alternatives to late‐transition‐metal catalysts.
Arthur David, Thierry Ollevier
wiley   +1 more source

Triptindane‐9,10,11‐triol: Threefold Hydride Transfer from Lithium Aluminum Hydride as the Key Step to C3‐Symmetrically Trifunctionalized Tribenzo[3.3.3]propellanes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 15, 22 April 2026.
Threefold reduction of 9,10,11‐triptindanetrione with LiAlH4 or NaBH4 yields exclusively the C3‐symmetric triol, suggesting an intracomplex (“rolling”) mechanism. However, use of LiAlH4/LiAlD4 (1 : 1) reveals a preceding hydride exchange. Mechanistic implications are discussed including the reduction of the related diketone.
Thorsten Hackfort   +5 more
wiley   +1 more source

Unimolecular Solvolyses in Ionic Liquid: Alcohol Dual Solvent Systems

open access: yesMolecules, 2016
A study was undertaken of the solvolysis of pivaloyl triflate in a variety of ionic liquid:alcohol solvent mixtures. The solvolysis is a kΔ process (i.e., a process in which ionization occurs with rearrangement), and the resulting rearranged carbocation ...
Elizabeth D. Kochly   +2 more
doaj   +1 more source

Cationic Cyclization Involving a Remote Allene Function in the Trifluoroethanolysis of Hepta-5,6-dienyl Toluene-p-sulphonate [PDF]

open access: yes, 1973
The remote allene function participates efficiently in the trifluoroethanolysis of hepta-5,6-dienyl toluene-p-sulphonate, leading to the cyclized 2-methylenecyclohexyl ...
Bergman, Robert G.   +2 more
core  

Transfer Hydrogenation of Organic Azides to Amines by Ammonia Borane Complex Under Mild Conditions Catalyzed by Reusable Au Nanoparticles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.
Organic azides are readily reduced to amines under mild conditions by ammonia borane complex, catalyzed by a low loading level of reusable Au nanoparticles supported on TiO2. We present the first protocol for the chemoselective reduction of organic azides to amines by ammonia borane complex. In the presence of a low catalytic amount of Au nanoparticles
Elisavet‐Maria Zantioti‐Chatzouda   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy