Results 131 to 140 of about 319,868 (397)
ChemCatChem, EarlyView.Lignin‐polycaprolactone (PCL) copolymers were prepared using a highly efficient and nontoxic zinc catalyst. The reaction kinetics were investigated and differ from those usually observed in ring‐opening polymerization. Depending on the chain length of the copolymer, an acceleration of the reaction was found.
Tim Langletz +3 more
wiley +1 more source
Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates
ChemCatChem, EarlyView.The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell +3 more
wiley +1 more source
Mass Spectrometry Reviews, EarlyView., 2023 Abstract Biodegradable polymers have been getting more and more attention because of their contribution to the plastic pollution environmental issues and to move towards a circular economy. Nevertheless, biodegradable materials still exhibit various disadvantages restraining a widespread use in the market.
Paola Rizzarelli +2 more
wiley +1 more source
A STUDY OF THE EFFECT OF ACETYLATION ON HEMP FIBRES WITH VINYL ACETATE
BioResources, 2012 Chemical modifications of hemp fibers were performed with acetic anhydride (AA) and vinyl acetate (VA) in the presence of pyridine or potassium carbonate as catalysts.
Nilgül Özmen
doaj
ChemistryEurope, EarlyView.A photoredox neutral sulfonylarylation of unactivated alkynes is achieved through a radical‐mediated intramolecular 1,4‐(hetero)aryl migration. The product configuration can be controlled under the irradiation of blue or green light. The method features mild, transition metal‐free conditions, good compatibility of functional groups, and high levels of ...
Xu Zhang, Fushan Chen, Chen Zhu
wiley +1 more source
Chemistry – A European Journal, EarlyView.A novel family of water‐soluble, nontoxic, and phosphorescent N‐glycosylated Ru(II) phenanthroline‐based complexes are reported. They exhibit photoselectivity indexes ranging from 10 to 44 in PC‐3 cells, while impacting cell migration and resistance to detachment after irradiation with blue light.
Elena de la Torre‐Rubio +5 more
wiley +1 more source
Synthesis and Antibactrial Study of New 2-Amino-5-Aryl- 1,3-Thiazole-4-Carboxylic Acid Derivatives
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017 2-Amino-5-aryl- 1,3-thiazole-4-carboxylic acid (A1-A3) were synthesized from the reaction of various aromatic aldehyde with dichloro acetic acid and thiourea.
Zina K. Al- Dulaimy +3 more
doaj
Sensing Precursors of Illegal Drugs-Rapid Detection of Acetic Anhydride Vapors at Trace Levels Using Photoionization Detection and Ion Mobility Spectrometry. [PDF]
Molecules, 2020 Bocos-Bintintan V +4 more
europepmc +1 more source
High performance mixed bisimide resins and composites based thereon [PDF]
, 1986 Mixtures of bismaleimide/biscitraconirnide resins produces materials which have better handling, processing or mechanical and thermal properties, particularly in graphite composites, than materials made with the individual resins. The mechanical strength
ations., Parker, J. A.
core +1 more source