Results 51 to 60 of about 17,390 (287)
Molecules, 2007 A variety of Hantzsch 1,4-dihydropyridines were oxidized to their corresponding pyridines in high yields in the presence of Cu(C22H22N2O2) in refluxing acetic acid.
Majid M Heravi +2 more
doaj +1 more source
Efficient metal-free visible light photocatalytic aromatization of azaheterocyles
Current Research in Green and Sustainable Chemistry, 2021 A metal free visible light photocatalytic oxidative aromatization of several aromatic azaheterocycles is reported using a newly developed 1,8-dimethoxy substituted acridinium ions (PC-2).
Karan Chhetri +7 more
doaj +1 more source
π‐Radical Cascades to Peri‐Fused Triangulene Dimers
Angewandte Chemie, EarlyView.We demonstrate the potential of open‐shell molecular graphene fragments as synthons for constructing graphene nanostructures via π‐radical cascades. By identifying monoradical intermediates as key selectivity‐determining species and tuning steric effects in a triangulene precursor, we show that reactivity in a formally diradical system can be ...
Paula L. Widmer +10 more
wiley +2 more sources
Molecules, 2018 A series of eight new 5-aryl-benzo[f][1,7]naphthyridines were synthesized in 17 to 64% overall yields via an improved MW-assisted cascade-like one pot process (Ugi–three component reaction/intramolecular aza-Diels-Alder cycloaddition) coupled to an
Óscar Vázquez-Vera +8 more
doaj +1 more source
Advanced Materials, EarlyView.As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle +6 more
wiley +1 more source
Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation
Angewandte Chemie, EarlyView.A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang +6 more
wiley +2 more sources
Advanced Science, EarlyView.ABSTRACT Large‐ion (K, Na) battery systems mitigate uneven global lithium distribution, while their ability to attain recharge time shorter than refueling would remove the final barrier for secondary batteries to replace petroleum vehicles. However, their large‐ion chemistry makes ultra‐fast charging an even significant challenge.
Shukai Ding +12 more
wiley +1 more source
, 2005 In order to investigate the effect of acid properties on the coke behavior and stability of butene aromatization, we prepared the AHZSM-5 samples with various acid properties by the methods of hydrothernial treatment and K addition.
Xu, LY +7 more
core +1 more source
ASBAAC: Automated Salt-Bridge and Aromatic- Aromatic Calculator [PDF]
Bioinformation, 2018 Biological systems are made of complex networks non-covalent interactions observed among protein-protein, protein-DNA, proteinlipid complexes using hydrogen-bonds, salt-bridges, aromatic-aromatic, van der Waals (vdW), hydrophobic-interactions and several others using distance criteria.
Roy, Chittran, Datta, Saumen
openaire +2 more sources
Advanced Science, EarlyView.This study identifies a FOSL2‐driven positive feedback loop that amplifies FSH/FSHR signaling. During FSH‐dependent follicle maturation, FSH induces Fosl2 expression via the cAMP‐PKA‐CREB cascade. FOSL2 in turn binds the promoters of Fshr and estrogen‐biosynthesis genes to enhance their transcription, thereby increasing Fshr mRNA level and amplifying ...
Hongru Shi +13 more
wiley +1 more source