Results 91 to 100 of about 17,105 (265)

Regioselective reactions of 3,4-pyridynes enabled by the aryne distortion model. [PDF]

open access: yes, 2013
The pyridine heterocycle continues to play a vital role in the development of human medicines. More than 100 currently marketed drugs contain this privileged unit, which remains highly sought after synthetically. We report an efficient means to access di-
Garg, Neil K, Goetz, Adam E
core  

Microstructural Evolution Dominates the Changes in the Thermal Conductivity of Conjugated Polymers Upon Doping

open access: yesAdvanced Functional Materials, Volume 36, Issue 3, 8 January 2026.
The relationship between the doping induced microstructure and thermal conductivity changes is elucidated for conjugated polymers. Eight conjugated polymers with different doping systems are studied, showing varied thermal conductivity responses based on structural order.
Jiali Guo   +13 more
wiley   +1 more source

Interplay of ortho- with spiro-cyclisation during iminyl radical closures onto arenes and heteroarenes

open access: yesBeilstein Journal of Organic Chemistry, 2013
Sensitised photolyses of ethoxycarbonyl oximes of aromatic and heteroaromatic ketones yielded iminyl radicals, which were characterised by EPR spectroscopy.
Roy T. McBurney, John C. Walton
doaj   +1 more source

Synthesis and Fluorescent Properties of Novel Isoquinoline Derivatives

open access: yesMolecules, 2019
Isoquinoline derivatives have attracted great interest for their wide biological and fluorescent properties. In the current study, we focused on the synthesis of a series of novel isoquinoline derivatives substituted at position 3 of the heteroaromatic ...
Łukasz Balewski   +5 more
doaj   +1 more source

isoQUINOLINE DERIVATIVES. PART III

open access: yes, 1957
In contrast with the earlier observation (Ghosh and Dutta, this Journal, 1955, 32, 17, 755) that treat­ment of (a-acetamido-β-phenyl)-etbylmethyl ketone and of β-phenyl-substituted analogues with POCI3 or conc. H2SO4 leads to the formation of I-methylisoquinoline derivatives, accompanied with dehy­drogenation and deacetylation, (α-scetamido-β-phenyl ...
T. N. GHOSH   +2 more
openaire   +1 more source

Catalysts for Electrochemical Oxidation of Ammonia: A Comprehensive Review of Fundamentals and Optimization Strategies

open access: yesAdvanced Materials, Volume 38, Issue 4, 16 January 2026.
Developing robust catalysts for ammonia electrochemical oxidation (AOR) is essential for advancing NH3 utilization technologies. This review summarizes recent progress in catalyst design and mechanistic understanding of AOR. In addition, it systematically investigates strategies to improve AOR performance for various types of catalysts.
Yike Ye   +4 more
wiley   +1 more source

Molluscicidal activity of Hammada scoparia (Pomel) Iljin leaf extracts and the principal alkaloids isolated from them against Galba truncatula

open access: yesMemorias do Instituto Oswaldo Cruz, 2009
The molluscicidal activity of Hammada scoparia leaf extracts and the principal alkaloids isolated from them (carnegine and N-methylisosalsoline) were tested against the mollusc gastropod, Galba truncatula, the intermediate host of Fasciola hepatica in ...
R Mezghani-Jarraya   +3 more
doaj   +1 more source

Palladium-catalyzed selective α-arylation of ortho -bromoacetophenones [PDF]

open access: yes, 2014
Synthesis of 1-(2-bromophenyl)-2-phenylethanones via an intermolecular Pd-catalyzed α-arylation of 1-(2-bromophenyl)ethanones is presented. The method relies on selective C-H activation (α-arylation) of relatively more reactive external iodo-arenes as ...
A, Gopi Krishna Reddy   +2 more
core   +1 more source

Amino Acid Directed Helical Assemblies of Natural Berberine for Chirality‐Dependent Photodynamic Antibacterial Therapy

open access: yesAdvanced Science, Volume 13, Issue 3, 14 January 2026.
Helical nanostructures co‐assembled from berberine (BBR) and Fmoc‐Y display supramolecular‐chirality‐dependent photodynamic antibacterial activity. The molecular chirality of Fmoc‐Y organizes achiral BBR into chiral nanofibers, where supramolecular handedness controls bacterial surface adsorption, membrane penetration, intracellular BBR delivery, and ...
Haoqiang Zhao   +9 more
wiley   +1 more source

Isoquinolines from the Roots of Thalictrum flavum L. and Their Evaluation as Antiparasitic Compounds

open access: yesMolecules, 2010
Alkaloids from Thalictrum flavum L. (Ranuculaceae) growing in the Loire valley (France) were isolated and evaluated for their antiplasmodial and leishmanicidal activities.
Pascal Richomme   +5 more
doaj   +1 more source

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