Results 21 to 30 of about 525 (154)

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

Advanced 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, Annika Schmidt, Florian Lehmann, Lea Küsel, Carsten Strohmann, Dieter Vogt, Thomas Seidensticker   +6 more
wiley   +1 more source

Dental composites: a comprehensive review on formulation, properties and recent developments

Polymer International, Volume 75, Issue 5, Page 365-386, May 2026.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui, Djallel Bouzid, Olivier Boyron   +2 more
wiley   +1 more source

Carbon-13 N.M.R. shifts as a measure of transannular interaction in unsaturated alicyclic systems

, 1984
Through-space transannular interaction between formally non-conjugated methylene and carbonyl n-electrons in conformationally rigid 3,7-disubstituted bicyclo[3.3.1]nonanes (1) has been demonstrated by Senda et al. by comparing the 13C n.m.r. shift values
R Bishop
core   +1 more source

Salicylate‐Assisted Surfactant‐Directed Assembly Synthesis of Uniform Mesoporous ZnO Nanospheres for Gas Sensing Applications

SmartMat, Volume 7, Issue 2, April 2026.
A salicylate‐assisted surfactant‐directed assembly strategy was developed to construct monodisperse mesoporous ZnO (mZnO) nanospheres with well‐defined architectures, followed by the integration of ultrasmall Pt nanoclusters to generate abundant metal‐metal oxide interfaces.
Ruiying Li, Lingxiao Xue, Yu Deng, Xiaowei Cheng, Meihua Chen, Limin Wu, Yonghui Deng   +6 more
wiley   +1 more source

Examining the role of Novel Thienopyridines as anti-cancer agents [PDF]

Despite extensive research and significant advances, particularly over the past two decades, the treatment of mature B-cell malignancies remains a challenge.
Broughton, Christopher Paul
core   +2 more sources

A NiOx‐Mediated Z‐Scheme Hybrid Photocatalyst for Efficient and Selective Oxidation of Inert C(sp3)–H Bonds

ChemCatChem, Volume 18, Issue 5, 13 March 2026.
A NiOx‐mediated Z‐scheme NiOx‐BWO‐TiO2 hybrid photocatalyst for the oxidation of inert benzylic C(sp3)─H bonds to aromatic aldehydes using molecular oxygen has been developed. ABSTRACT The selective photocatalytic oxidation of inert benzylic C(sp3)–H bonds to aromatic aldehydes using molecular oxygen remains a formidable challenge due to uncontrolled ...
Sajad Bhat, Xu‐Dong Mao, Xiao‐Feng Wu   +2 more
wiley   +1 more source

Nutzung des kooperativen Energie‐ und Wasserstofftransfers für die direkte Aminierung von nicht aktivierten Alkanen

Angewandte Chemie, Volume 138, Issue 3, 16 January 2026.
Kooperativer EnT & HAT: neue Methode zur direkten C─N‐Kopplung von nicht aktivierten Alkanen. Metallfreie photokatalytische Aminierung. Verwendung von nicht aktivierten Alkanen. Neuartiger Reaktionsweg. Abstrakt Während in letzter Zeit wichtige Fortschritte bei der direkten Funktionalisierung von Alkanen durch photokatalytische Verfahren erzielt wurden,
Sai Teja Kolla, Àlex Díaz‐Jiménez, Sven Trienes, Ignacio Funes‐Ardoiz, Joanna Wencel‐Delord   +4 more
wiley   +1 more source

Harnessing Cooperative Energy Transfer and Hydrogen Atom Transfer for Direct Nitrogenations of Non‐Activated Alkanes

Angewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.
Cooperative EnT & HAT: New solution for direct C─N coupling of unactivated alkanes. Metal‐free photocatalytic nitrogenation. Use of unactivated alkanes. Original reaction pathway. Abstract While important progress has been achieved recently on direct functionalization of alkanes via photocatalytic methods, direct amination of aliphatic compounds ...
Sai Teja Kolla, Àlex Díaz‐Jiménez, Sven Trienes, Ignacio Funes‐Ardoiz, Joanna Wencel‐Delord   +4 more
wiley   +1 more source

Synthesis of Polysubstituted Tetrahydro‐1,4‐Thiazepines by Rhodium‐Catalyzed Ring Expansion of Dihydro‐1,3‐Thiazines with Diazoesters

Advanced Synthesis &Catalysis, Volume 368, Issue 2, January 2026.
A rhodium(II)‐catalyzed ring expansion of stereodefined dihydro‐1,3‐thiazines with diazomalonates gives 1,4‐thiazepines via a sulfonium ylide rearrangement. The reaction shows a cis/trans reactivity divergence arising from different metal coordination, as revealed by experiments and density functional theory studies.
Laurine Tual, Romain Pertschi, Gaëlle Blond, Mihaela Gulea   +3 more
wiley   +1 more source

Predictable close-packing similarities between cis- and trans-2-hydroxy-1-cyclooctanecarboxylic acids and trans-2-hydroxy-1-cyclooctanecarboxamide

, 2002
In order to extend the experimental data already available on the close packing of cyclopentanes substituted with vicinal COX (X = OH, NH2) and OH groups to the analogous cyclohexanes, cycloheptanes and cyclooctanes, (1R*,2S*)-cis-2-hydroxy-1 ...
Gyarmati, Z., Argay, G., Kalman, A., Bernath, G., Fabian, L.   +4 more
core   +1 more source