Results 51 to 60 of about 5,414 (199)

Isolation of the isopropanol extract components of the leaves of Ailanthus glandulosa by a new method

Heliyon, 2023
The leaves of Ailanthus glandulosa were extracted with the Soxhlet apparatus using isopropanol. A new method was used to separate and isolate eleven chemical compounds present in the leaves of bird's tongue.
Sawsan Youseff Saad
doaj   +1 more source

Efficient NiII2LnIII2 electrocyclization catalysts for the synthesis of trans-4,5-diaminocyclopent-2-enones from 2-furaldehyde and primary or secondary amines [PDF]

, 2016
A series of heterometallic coordination clusters (CCs) [NiII2LnIII2(L1)4Cl2(CH3CN)2] 2CH3CN [Ln = Y (1Y), Sm (1Sm), Eu (1Eu), Gd (1Gd), or Tb (1Tb)] were synthesized by the reaction of (E)-2-(2-hydroxy-3-methoxybenzylidene-amino)phenol) (H2L1) with NiCl2·
Alaa Abdul-Sada, Alfredo Vargas, Chojnacki J., Cronin L., Frisch M. J., George E. Kostakis, James D. Mattock, Kieran Griffiths, Mateusz B. Pitak, Oscar Navarro, Prashant Kumar, Simon J. Coles, Wedig U.   +12 more
core   +1 more source

Research Progress of Polyoxometalate‐Integrated Frameworks: Syntheses, Properties, and Applications

ChemistryEurope, EarlyView.
This review systematically summarizes the integration of polyoxometalates with covalent organic frameworks, metal‐organic frameworks, hydrogen‐bonded organic frameworks, and emerging porous hosts. It highlights synergistic effects, synthesis strategies, and applications in catalysis, energy storage, sensing, and biomedicine, while addressing current ...
De‐Yin Wang, Zhang‐Di Liu, Rui Xing, Zi‐Hao Wei, Zaixiang Zhang, Yang Yang, Jin Zhu   +6 more
wiley   +1 more source

Organocatalytic Enantioselective [4 + 4] Cycloadditions of Furan Ortho‐Quinodimethanes

Angewandte Chemie, Volume 137, Issue 41, October 6, 2025.
The first organocatalytic enantioselective [4 + 4] cycloaddition of furan ortho‐quinodimethanes is presented. The reaction proceeds in good yields and with high enantioselectivities allowing for the formation of novel classes of cyclooctanoids. DFT calculations point to an intriguing mechanism, where the stereochemical outcome is attributed to ...
Niklas Lawaetz Østergaard, Anne Kristensen, Enrico Marcantonio, Mette Louise Skipper, Michał Dudziński, David A. McLeod, Karl Anker Jørgensen   +6 more
wiley   +2 more sources

Thermodynamic properties of some isomeric 5-(nitrophenyl)-furyl-2 derivatives

BMC Chemistry, 2019
Background The aim of the current work was to determine thermodynamical properties of 5-(nitrophenyl)-2-furaldehyde oximes and 3-[5-(nitrolphenyl)-2-furyl]acrylic acids.
Volodymyr Dibrivnyi, Andriy Marshalek, Iryna Sobechko, Yuriy Horak, Mykola Obushak, Nadiia Velychkivska, Lubomyr Goshko   +6 more
doaj   +1 more source

Geochemical analysis of Cenozoic fossil conifers at high latitudes: Implications for molecular preservation and environmental change [PDF]

, 2010
Fossil materials record ancient life and their adapted environment. Arctic plant fossils are critical for our understanding of the Earth’s paleoenvironment when high latitudes were under ice-free conditions.
Witkowski, Caitlyn
core   +1 more source

Additives Promote Divergent Reactivity in Photolytic Deoxygenation and Lactonization Reactions of Cobalt Alkoxycarbonyls

European Journal of Organic Chemistry, EarlyView.
We report a carbonylation‐homolysis process to access acyl radicals that can undergo decarboxylation or cyclization onto tethered alkenes. In both cases, ligands and additives are shown to influence the outcome to give saturated or unsaturated products, in some cases with isomerization of the initial products.
Jacob N. Hackbarth, Dana R. Chambers, Cory T. Ludwig, Tyler K. Brown, David B. C. Martin   +4 more
wiley   +1 more source

Residual Life Assessment of Oil‐Immersed Insulating Paper by FTIR Feature Interpretability Evolution

High Voltage, EarlyView.
ABSTRACT The ageing of insulating paper escalates the peril of insulation failure in oil‐impregnated‐paper power equipment. Consequently, the real‐time monitoring and non‐destructive assessment of insulating paper condition assume paramount significance.
Guangyi Liu, Yanan Liu, Chen Zhang, Jian Li, Zhengyong Huang, Feipeng Wang, Huaqiang Li, Jinghui Gao, Lisheng Zhong   +8 more
wiley   +1 more source

Synthesis of [11C]CX-6258 as a new PET tracer for imaging of Pim kinases in cancer [PDF]

, 2015
The reference standard CX-6258 {(E)-5-chloro-3-((5-(3-(4-methyl-1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)methylene)indolin-2-one, 4a} and its desmethylated precursor N-desmethyl-CX-6258 {(E)-3-((5-(3-(1,4-diazepane-1-carbonyl)phenyl)furan-2-yl ...
Gao, Mingzhang, Tzintzun, Reynaldo, Wang, Min, Xu, Zhidong, Zheng, Qi-Huang   +4 more
core   +1 more source

Ximenia americana L. From Popular Use to Anti‐Inflammatory Activities: A Comprehensive Review

Food Frontiers, Volume 7, Issue 2, March 2026.
ABSTRACT Ximenia americana (L.), known as “yellow plum,” “sea lemon,” or “Brazilian plum,” is a tropical/subtropical plant widely used in traditional medicine. Its roots, leaves, flowers, stem, and fruits are traditionally employed to treat various inflammatory disorders.
Bruno Anderson F. Silva, Maria Gabriely de Lima Silva, Eduardo S. Silva, Lucas Yure S. Silva, Renata Torres Pessoa, Silvio C. Alves‐Júnior, Jullyana S. S. Quintans, Laurent Picot, Irwin Rose A. Menezes, Lucindo J. Quintans‐Júnior   +9 more
wiley   +1 more source