Results 141 to 150 of about 62,611 (245)

Immobilized CuCl2/TiO2 photocatalysts for the selective oxidation of benzyl alcohol to benzaldehyde

open access: yesPhotochemistry and Photobiology, EarlyView.
The photocatalytic aerobic oxidation of benzyl alcohol to benzaldehyde was investigated using free and alginate‐immobilized CuCl2 and/or TiO2 (P25) catalysts under UV irradiation. Immobilization enabled catalyst recovery and maintained high benzaldehyde selectivity but led to reduced activity due to internal oxygen diffusion limitations, which were ...
Nosaibeh Nosrati‐Ghods   +3 more
wiley   +1 more source

Azetidinylideneketenimines as a Multimodal Synthetic Platform: Coordination Chemistry and Cycloaddition‐Triggered Transformations

open access: yesAngewandte Chemie, Volume 138, Issue 20, 11 May 2026.
Cross‐coupling/homologation sequence between a stable three‐membered‐ring carbene and isocyanides enables facile and rapid access to novel methyleneketenimines and the first bis(methyleneketenimine). Reactivity studies gave rise to the first methyleneketenimine‐transition metal complexes, unique multimodal reactivity ranging from CO2, isocyanate ...
Taichi Koike   +3 more
wiley   +2 more sources

Processability and Crosslink Density: Role of Peptizers in Natural Rubber and Chlorobutyl Rubber

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This work evaluates how chemical and physical peptizers affect mastication, vulcanization behavior, and network formation in natural rubber and chlorobutyl rubber. Size‐exclusion chromatography, rheometry, DSC, and swelling analyses demonstrate improved processability but reduced crosslink density with peptizer addition.
Amanda F. Baruel   +4 more
wiley   +1 more source

Nickel‐Catalyzed Enantioconvergent Arylation of Unactivated Cyclic Electrophiles: Asymmetric Synthesis of 3‐Substituted Pyrrolidines

open access: yesAngewandte Chemie, Volume 138, Issue 20, 11 May 2026.
Metal‐catalyzed enantioconvergent substitutions of unactivated cyclic electrophiles by organometallic nucleophiles have not previously been reported. Herein, a chiral nickel catalyst is described that achieves this objective, coupling 3‐iodopyrrolidine derivatives with arylzinc nucleophiles.
Ting Hei Matthew Wong   +2 more
wiley   +2 more sources

Pyrazolyl–Pyridine Ruthenium Complexes: A New Metallic Line of Defense Against Acinetobacter baumannii

open access: yesChemBioChem, Volume 27, Issue 9, 14 May 2026.
Ruthenium(II) (Ru(II)) pyrazolyl–pyridine half‐sandwich complexes (C1–C6) were synthesized and structurally characterized as prospective metalloantibiotics. Screening through the Community for Open Antimicrobial Drug Discovery (CO‐ADD) revealed selective activity against Acinetobacter baumannii, with favorable cytotoxicity profiles. Biophysical studies
M. Cassiem Joseph   +7 more
wiley   +1 more source

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