Results 41 to 50 of about 13,292 (250)

From Molecule to Meaning: Click and Bioorthogonal Chemical Reporters for Plant Systems, Biological Imaging, and Artistic Expression

ChemBioChem, EarlyView.
At the intersection of chemical biology, plant imaging, and contemporary art, this review introduces the concept of chembioart. By tracing how chemical reporters illuminate plant biomolecules in vivo, their role not only in advancing scientific understanding but also in inspiring transdisciplinary collaborations and visual expression is highlighted ...
Marie Hinnebo, Clémence Simon, Adèle Tilouine, Corentin Spriet, Christophe Biot   +4 more
wiley   +1 more source

A mechanistic investigation of the oxidation of N,α-diphenylnitrones by dichloramine-T in aqueous acetonitrile medium - a non-linear Hammett plot [PDF]

Journal of the Serbian Chemical Society, 2009
The kinetics of oxidation of a number of meta- and para-substituted N,α-diphenylnitrones (nitrone) by dichloramine-T (DCT) was investigated in the presence of alkali in aqueous acetonitrile medium.
Manivarman S., Rajarajan G., Manikandan G., Sekar M., Jayabharathi J., Thanikachalam V.   +5 more
doaj   +1 more source

Biocompatible Chemistry: A Plug‐and‐Play Toolbox for Chemical Biology Research

ChemBioChem, EarlyView.
The “plug‐and‐play” nature of biocompatible chemistry makes it a powerful toolbox for investigating complicated biological systems and producing drug leads for clinical usages. This review summarizes the commonly used biocompatible reactions and the recent advances of their representative applications in chemical biology research, thus highlighting the
Adam R. Lovato, Zeng Lin, Qingfei Zheng
wiley   +1 more source

Nitrones as Versatile Linkages for the Construction of Covalent Organic Polymers by Tandem Transformations

ChemistryEurope, EarlyView.
The nitrone moiety's versatility in covalent organic polymer (COP) materials is shown by its ability to form either nitrone‐linked or oxime O‐ether‐linked COPs from the same building blocks, simply by changing reaction conditions. Additionally, its 1,3‐dipolar cycloaddition reactivity enabled the synthesis of a functionalized isoxazolidine‐linked ...
Beatriz de Santos, M. José Capitán, Jesús Álvarez, Isabel Sobrados, Silvia Cabrera, Alberto Fraile, José Alemán   +6 more
wiley   +1 more source

Synthesis and Neuroprotective Properties of N-Substituted C-Dialkoxyphosphorylated Nitrones

ACS Omega, 2019
Herein, we report the synthesis and neuroprotective power of some N-substituted C-(dialkoxy)phosphorylated nitrones 4a–g, by studying their ability to increase the cell viability, as well as their capacity to reduce necrosis and apoptosis.
D. Piotrowska, Laura Mediavilla, L. Cuarental, I. Głowacka, J. Marco-Contelles, D. Hadjipavlou-Litina, F. López-Muñoz, M. Oset-Gasque   +7 more
semanticscholar   +1 more source

Cycloaddition and Annulation Reactions with Donor‐Acceptor Cyclobutanes

Helvetica Chimica Acta, EarlyView.
Reviewing the rise of donor‐acceptor cyclobutanes in (4 + 2) annulations, from Lewis/Brønsted acid to electrocatalysis, enabling stereoselective access to complex heterocycles and natural products. Abstract Donor‐acceptor (DA) cyclobutanes are emerging as valuable synthetic intermediates due to their ring strain and polarized C─C bonds, which allow for
Emma G. L. Robert, Jerome Waser
wiley   +1 more source

Chemiexcitation in Ex Vivo Porcine Skin Model

Pigment Cell &Melanoma Research, Volume 38, Issue 6, November 2025.
Formation of triplet excited carbonyl by direct chemiexcitation in the fibroblasts of the dermis and in the melanocytes and keratinocytes of the epidermis in the porcine skin, followed by excitation energy transfer from triplet excited carbonyl to melanin via radiative and non‐radiative pathways by indirect chemiexcitation.
Pavel Pospíšil, Vendula Paculová, Ankush Prasad, Michal Berecka   +3 more
wiley   +1 more source

Cu-Catalyzed Oxyalkynylation and Aminoalkynylation of Unactivated Alkenes: Synthesis of Alkynyl-Featured Isoxazolines and Cyclic Nitrones.

Organic Letters, 2018
A convenient and efficient vicinal oxyalkynylation/aminoalkynylation of internal unactivated alkenes is achieved by means of a Cu-catalyzed radical cascade reaction of unsaturated ketoximes with ethynylbenziodoxolone (EBX) reagents. This protocol enables
Wen-Jun Han, Yuan-rui Wang, Jianwu Zhang, Fei Chen, Bo Zhou, B. Han   +5 more
semanticscholar   +1 more source

Synthesis of Cyclic Sulfilimines and Sulfoximines via Copper‐Mediated C(sp2)–H Sulfanylation of Benzylamines with a Catalytic Transient Directing Group

ChemistryEurope, Volume 3, Issue 5, September 18, 2025.
Copper‐mediated transient C─H sulfanylation of benzylamines with sulfenamides enables rapid access to thioethers, cyclic sulfilimines, and sulfoximines. Mechanistic investigations using 1H NMR and electron paramagnetic resonance spectroscopy reveal an unprecedented thermally induced homolytic cleavage of the sulfenamide N─S bond, slowly releasing the ...
Tsz‐Kan Ma, Peerawat Saejong, King‐Long Or, Callum S. Begg, James A. Bull   +4 more
wiley   +1 more source

Highly Electron-Deficient Pyridinium-Nitrones for Rapid and Tunable Inverse-Electron-Demand Strain-Promoted Alkyne-Nitrone Cycloaddition.

Organic Letters, 2019
Highly accelerated inverse-electron-demand strain-promoted alkyne-nitrone cycloaddition (IED SPANC) between a stable cyclooctyne (bicyclo[6.1.0]nonyne (BCN)) and nitrones delocalized into a C α-pyridinium functionality is reported, with the most electron-
Praveen N. Gunawardene, Wilson Luo, Alexander M. Polgar, J. Corrigan, M. Workentin   +4 more
semanticscholar   +1 more source