Results 161 to 170 of about 8,250 (257)

A Modified Pyrrole Biscarbinol Approach to Opp‐A2B2‐Symmetric Benzoporphyrins

ChemistryEurope, Volume 4, Issue 2, February 2026.
The biscarbinol condensation to 4,7‐dihydro‐4,7‐ethanoisoindole is extended, enabling access to a little explored class of meso‐substituted tetrapyrroles. Cross‐condensation yields three opp‐A2B2 symmetric yet structurally distinct porphyrins. Their characterization reveals trends from π‐extension and steric distortion, broadening the scope of ...
Lampros‐Pascal Gazetas, Michael Ruppel, Frank Hampel, Dominik Lungerich, Norbert Jux   +4 more
wiley   +1 more source

Catalytic Hydrogenation Dominated by Concerted Hydrogen Tunneling at Room Temperature. [PDF]

ACS Cent Sci
Wu Q, Liu P, Zhang XG, Fan C, Chen Z, Qin R, Gao YQ, Zhao Y, Zheng N.   +8 more
europepmc   +1 more source

Designing a Green Chiral High‐Performance Liquid Chromatography Method: Proof‐of‐Concept with Crizotinib

Chemistry–Methods, Volume 6, Issue 2, February 2026.
A sustainable HPLC approach was developed for the enantioseparation of crizotinib using polysaccharide‐based chiral stationary phases under polar‐organic and reversed‐phase conditions. Experimental‐design optimization and greenness/whiteness assessment (AGREE, Eco‐Scale, Complex MoGAPI, AMGS, and RGB‐fast) identified an ethanol–water system as the most
Ali Mhammad, Gergely Dombi, Máté Dobó, Eliza Tóth, Gergely Molnár, Arash Mirzahosseini, Zoltán‐István Szabó, Gergő Tóth   +7 more
wiley   +1 more source

Chemoselective Benzylic C-H Deuteration Using Deuterium Gas. [PDF]

Org Lett
Yan JL, Meng G, Strassfeld DA, Donohoe MN, Yeung KS, Simmons BJ, Dhar TGM, Qiao JX, Yu JQ.   +8 more
europepmc   +1 more source

Detection of Radical Anions by Electrospray‐Ionization Mass Spectrometry

Helvetica Chimica Acta, Volume 109, Issue 2, February 2026.
The present study investigates the ability of electrospray‐ionization mass spectrometry to detect radical anions. For neutral analytes with high electron affinities, radical anions are formed by cathodic reduction and can be easily observed. In contrast, analytes with lower electron affinities require the addition of a reducing agent for the generation
Niklas F. Eisele, Daniel Kösters, Konrad Koszinowski   +2 more
wiley   +1 more source

Proline-Free Local Turn via N-Oxidation: Crystallographic and Solution Evidence for a Six-Membered N-O⋯H-N Ring. [PDF]

Molecules
Zheng R, Zhao W, Yuan S, Wang T, Lu W, Meng Q, Yang L, Sun D.   +7 more
europepmc   +1 more source

The Versatility of Imidazole and Imidazolium Scaffolds in Sustainable Chemistry and Energy Conversion

Helvetica Chimica Acta, Volume 109, Issue 2, February 2026.
This review highlights the expanding applications of imidazole‐based compounds in sustainable chemistry and energy technologies. It emphasizes their roles in catalysis, solar cells, and future interdisciplinary strategies for developing advanced functional materials.
Lianghui Li, Shun Tian, Enze Xu, Zhaofu Fei, Paul J. Dyson   +4 more
wiley   +1 more source

Solvatochromism of Amphiphilic Au₂₅(SR)₁₈ Nanoclusters Based on Supramolecular Ligand-Thiolated Crown Ether. [PDF]

J Phys Chem Lett
Obstarczyk P, Kundu S, Bürgi T, Olesiak-Bańska J.   +3 more
europepmc   +1 more source

Recent advances in fluorescent materials innovation and film‐based sensing application

Responsive Materials, Volume 4, Issue 1, February 2026.
This review systematically summarizes recent advances in high‐performance film‐based fluorescent sensors (FFSs), specifically covering the innovative strategies for engineering porous sensing films, and the sensitive and rapid detection for diverse target analytes. Current challenges for the further development of the sensors are discussed, guiding the
Xinyu Gou, Junxia Peng, Yu Fang
wiley   +1 more source