Results 151 to 160 of about 62,031 (280)

Formal Synthesis of the Akuammiline Alkaloid (±)‐Strictamine via a (4 + 2) Annulation Reaction With a Donor–Acceptor Cyclobutane

Helvetica Chimica Acta, EarlyView.
We report a concise formal synthesis of (±)‐strictamine via a silylium‐catalyzed (4 + 2) annulation of a donor–acceptor cyclobutane, achieved in 13 steps from tryptamine. ABSTRACT The akuammiline alkaloids are complex monoterpene indole natural products with a rigid cage‐like architecture and diverse biological activities.
Clément Tanguy, Emma G. L. Robert, Jerome Waser   +2 more
wiley   +1 more source

Synthesis and biological evaluation of novel hydrazone derivatives for the treatment of Alzheimer's disease. [PDF]

RSC Adv
Ali SH, Osmaniye D, Kaplancıklı ZA.
europepmc   +1 more source

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

Helvetica Chimica Acta, EarlyView.
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

Transition-Metal-Based Dearomatization Strategy for the Synthesis of Functionalized <i>cis</i>-Tetrahydro-2-Oxindoles. [PDF]

Organometallics
Siano P, Diment LA, Siela DJ, Ericson MN, McGraw M, Song BC, Livaudais BF, Simpson SR, Dickie DA, Harman WD.   +9 more
europepmc   +1 more source

Dietary essential oils modulate post‐mortem oxidative damage in trout fillets exposed to slaughter stress during frozen storage

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Slaughter is a critical phase in aquaculture that can severely compromise both animal welfare and product quality. Stress responses triggered during this stage may accelerate post‐mortem biochemical degradation and promote oxidative damage in fish fillets. Essential oils, known for their antioxidant and anti‐inflammatory properties,
Lucía Méndez, Giulia Secci, Lorena Barros, Gabriel Dasilva, Giuliana Parisi, Isabel Medina   +5 more
wiley   +1 more source

Enantioselective rapid assembly of bis-heterocycles by sequential palladium-catalyzed aza-Heck cyclization coupling reaction. [PDF]

Sci Adv
Wang L, Wu S, Zhang W, Zhang S, Dong J, Hu W, Zhou C, Gao L, Zhou L, Zhang J.   +9 more
europepmc   +1 more source

Stimuli‐Responsive 3D‐Printed Structurally Colored Materials Based on Core–Shell Particle Architectures

Macromolecular Materials and Engineering, EarlyView.
A novel, structurally colored and pH‐responsive filament for FDM 3D‐printing is presented, which is based on tailored core–shell particles with methacrylic acid as a comonomer in the particle shell. The pH‐responsiveness of the printed objects is achieved due to particle swelling in alkaline conditions.
Sascha Verwaayen, Lukas Siegwardt, Georg Hemkemeier, Armin W. Novak, Daniel Rauber, Marc Schneider, Markus Gallei   +6 more
wiley   +1 more source

Synthesis of 2-Oxazolines from <i>N</i>-Allyl and <i>N</i>-Propargyl Amides. [PDF]

Molecules
Bojar K, Branowska D, Wolińska E.
europepmc   +1 more source

Bio‐Based Epoxy Resins from Estragole: Achieving High Glass Transition Temperatures Comparable to DGEBA and Simultaneously Low Viscosities

Macromolecular Materials and Engineering, EarlyView.
Two novel bio‐based epoxy monomers, diglycidyl‐4‐allylphenol (DG‐4A) and triglycidyl‐diallylphenol (TG‐DA), derived from estragole (92% and 72% bio‐content), were synthesized and cured with isophorone diamin (IPDA) and 4,4´‐diaminodiphenyl sulfone (DDS). The resins show high Tgs, with DG‐4A reaching and TG‐DA exceeding DGEBA‐based systems. These resins
Florian Bauer, Elisabeth Schamel, Herbert Schlachter, Gerd Wehnert, Dominik Söthje   +4 more
wiley   +1 more source

Fluoride-Transfer Asymmetric Allylic Alkylation Enables Regiodivergent, Stereoselective Cross-Electrophile Coupling. [PDF]

Angew Chem Int Ed Engl
Duran J, Moldoveanu VG, Barroso C, Pereira GA, Limburg B, Companyó X.   +5 more
europepmc   +1 more source