Results 161 to 170 of about 60,159 (283)
Direct Mechano-Catalytic Synthesis of Amides Using Brass Balls via Cross-Coupling of Isocyanides With Arylboronic Acids or in Situ Generated N-Aryl-Pyridinium Salts. [PDF]
Chem Asian JMkrtchyan S +5 more
europepmc +1 more source
Benign by design: A paradigm shift in cosmetic ingredient development
International Journal of Cosmetic Science, EarlyView.Benign by design strategies enable the creation of biodegradable cosmetic ingredients, reducing environmental persistence while maintaining the intended biological activity. This work compiles design rules and tools to guide the development of more sustainable molecules for the cosmetics industry.
Sandra Mota +3 more
wiley +1 more source
Hyperpolarization of Pyridine 15N‐Oxide Molecular Probes Enabled by Parahydrogen
Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.Pyridine 15N‐oxides are introduced as motifs for hyperpolarization studies and biochemical applications are demonstrated. ABSTRACT Magnetic resonance (MR) is a powerful non‐invasive technique for probing structural, functional, and metabolic processes with high spatial and temporal resolution.
Ruhuai Mei +8 more
wiley +2 more sources
Photochemistry and Photobiology, EarlyView.Visible light photolysis of a N‐(N,N‐diarylaminopyridinium) salt allows for covalent modification of a peptide. Mass spectrometry demonstrates that this procedure selectively labels tryptophan residues. Laser flash photolysis experiments show that bond formation occurs via a diarylnitrenium ion intermediate.
Edward S. Chinn +3 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 37, 7 September 2026.We introduce a novel chemical derivatisation strategy for the UV‐activated detection of elusive metabolites. Incorporation of a tocopherol‐active chromophore allows for the detection of tagged analytes as photoionised radical cations, selectively induced by a 266 nm laser.
Sofia R. McGowan +5 more
wiley +2 more sources
A Photoredox C-H Arene Functionalization toward Substituted Methyls. [PDF]
J Am Chem SocŽurauskas J +4 more
europepmc +1 more source
Journal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.Introduction of a cation to donor/acceptor‐functionalized 2,6‐bisethynylpyridines results in through‐space interaction of donor and acceptor units. The electronic effects of this organization are explored using 1H‐NMR and UV‐vis spectroscopies. ABSTRACT Introduction of Ag(I) cations to 2,6‐bisethynylpyridine units decorated with electron‐donating (N,N ...
Jarod T. Sjoquist +8 more
wiley +1 more source
Multivalent-Anion-Induced Inversion of Chiroptical Signals in a Cyanine Dye Bound to Nanotubular Supramolecular Assemblies. [PDF]
LangmuirOtsuki M, Hano N, Ihara H, Takafuji M.
europepmc +1 more source
Pyridinium halide promoted ring-opening reactions of exo-norbornene oxide
, 1983 Ring opening of 1 with pyridinium chloride or pyridinium iodide in chloroform and/or pyridine gives significant amounts of halohydrins 2a or 2b, reflecting partial suppression of the Wagner-Meerwein rearrangement that occurs on ring-opening with hydrogen
G. Gargaro +3 more
core
ChemSusChem, Volume 19, Issue 17, 14 September 2026.Mechanochemical upcycling of bio‐ and fossil‐based polyesters with alcohols and amines using MeONa as the catalyst selectively produces synthetically useful diesters and diamides, giving only alcohols as byproducts. This green and efficient protocol is readily scalable and can be transferred to the upcycling of polyester‐based postconsumer waste ...
Divya Jain +5 more
wiley +1 more source