Results 131 to 140 of about 29,601 (261)
Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization
Angewandte Chemie, Volume 138, Issue 36, 1 September 2026.The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu +6 more
wiley +2 more sources
a-Hidroxilação de compostos 1,3-dicarbonilados: síntese da harzialactona e de y-lactonas análogas [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Neste trabalho, foi desenvolvida uma metodologia simples para realizar a ?-hidroxilação ...
Peterle, Marcos Maragno
core
Functional and Network PHAs via Stereoselective Polymerization and Tailored Post‐Transformation
Angewandte Chemie, Volume 138, Issue 36, 1 September 2026.Catalyst‐controlled stereoselective (co)polymerization of functionalized lactones produces vinyl‐, allyl‐, and propargyl‐functionalized PHAs with high syndiotacticity and a broad applicable temperature window, which can be further transformed into crosslinked PHA thermosets, elastic supramolecular networks, and functional grafts. ABSTRACT Incorporation
Ruirui Li +6 more
wiley +2 more sources
High‐Performance Bio‐Glue From the Berries of a Parasitic Plant
Advanced Materials, Volume 38, Issue 53, 21 September 2026.We report a fully bio‐based adhesive derived primarily from a (poly)saccharide extract obtained from the berries of the hemi‐parasitic plant mistletoe (Viscum album), supplemented with tannic and malic acid without any further chemical functionalization.
Ufuk Gürer +8 more
wiley +1 more source
Alkoxyallenes in Modern Synthesis: Reactivity, Catalysis, and Complexity Generation
Advanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.The last decade has witnessed a remarkable transformation in alkoxyallene chemistry. Although historically employed as synthetic equivalents of acrolein or as versatile 3C synthons, alkoxyallenes are now increasingly recognized as highly adaptable platforms for synthetic design.
A. Lanfranco +5 more
wiley +1 more source
Antioxidants Differentially Regulate Non-Photochemical Quenching. [PDF]
Plant Cell EnvironABSTRACT Non‐photochemical quenching (NPQ) dissipates excess light energy as heat, limiting reactive oxygen species production during photosynthesis. Exogenous antioxidants are widely reported to improve plant performance under stress, yet their impacts on NPQ are inconsistent across studies, complicating mechanistic interpretation.
de Rodrigues de Queiroz A +5 more
europepmc +2 more sources
Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant
, 2002 Propylene epoxidation by air was carried out on NaCl-modified silver (NaCl/Ag) catalysts, and the catalysts were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The effects of NaCl loadings, propylene to oxygen ratio,
Lu, JQ, Luo, MF, Lei, H, Li, C
core
Enzyme@Silicone: A Versatile Combo for Robust Synthetic Biocatalysis?
Advanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.Silicone‐based polymers are versatile materials for enzyme immobilization, offering unique advantages such as chemical inertness, thermal stability, and tunable morphology. This review highlights their applications in synthetic biocatalysis, from batch to continuous processes, and addresses key challenges such as mass transport limitations and ...
Marion B. Ansorge‐Schumacher
wiley +1 more source
Advanced Science, Volume 13, Issue 53, 24 September 2026.This study presents a computational tunnel engineering strategy in Fe(II)/α‐ketoglutarate‐dependent dioxygenases (αKGDs) to enhance oxygen (O2) transport, an essential molecule for αKGDs, and limit hydrogen peroxide (H2O2) entry, an inhibitor from the αKG supply system.
Huan Liu +10 more
wiley +1 more source
Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications
Advanced Science, Volume 13, Issue 50, 7 September 2026.Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li +6 more
wiley +1 more source