Results 31 to 40 of about 10,537 (183)
Rhodium‐Catalyzed Carbene Transfer to Isocyanides Using Zinc Carbenoids
European Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.A diazo‐free rhodium‐catalyzed carbene transfer to isocyanides using zinc carbenoids generated from α‐acyloxy halides is reported. This mild protocol furnishes ketenimines that can either be hydrolyzed to amides or intercepted with trimethylsilyl azide or carboxylic acids to give tetrazoles and imides, respectively.
Thomas R. Roose +5 more
wiley +1 more source
Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.Thymus vulgaris essential oil (TvEO), largely composed of thymol, showed strong bactericidal activity with Staphylococcus aureus (S. aureus) being most sensitive. TvEO markedly inhibited MRSA biofilm formation and significantly reduced established biofilms. Molecular docking suggests several TvEO components interact with proteins involved in S.
Soumia Dakhouche, Mouna Mnif, Sami Mnif
wiley +1 more source
Lippia umbellata Cav.: Chemical Composition, Insecticidal, and Antimicrobial Activities
Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.Hexane extracts of Lippia umbellata leaves and flowers contain lupenone, α‐amyrin, and hentriacontane. They exhibit insecticidal activity against Drosophila melanogaster and inhibit AChE in vitro and in silico. Furthermore, the extracts can inhibit the growth of medically important bacteria and yeasts, including multidrug‐resistant strains.
José Guillermo Avila‐Acevedo +11 more
wiley +1 more source
Unlocking Stereodefined Olefins by Z‐Selective Transition Metals‐catalyzed C−H Activations
ChemCatChem, Volume 18, Issue 15, 14 August 2026.The synthesis of Z‐olefins is an important challenge in synthetic organic chemistry. Within this review, we report a comprehensive overview of transition metals‐catalyzed Z‐selective C–H activations of (hetero)arenes for the synthesis of stereodefined olefins.
Francesco Capranica +2 more
wiley +1 more source
ChemistryEurope, Volume 4, Issue 8, August 2026.A new family of pentamethylcyclopentadienyl (C5Me5, Cp*) iridium(III), rhodium(III), and ruthenium(III) complexes bearing bidentate 1,2‐dioxime ligands was developed and their catalytic performances were evaluated in the hydrogen‐borrowing‐type H/D exchange of amines using D2O as both solvent and deuterium source. Iridium derivatives achieved excellent
Francesco Taglieri +8 more
wiley +1 more source
Food Science &Nutrition, Volume 14, Issue 8, August 2026.Guava leaf essential oil (GL‐EO) and Oliveria decumbens essential oil (Od‐EO) improved the microbial and oxidative stability of refrigerated ground beef and helped extend its shelf life. GL‐EO better preserved odor and color, while the combined GL‐EO + Od‐EO treatment provided the best texture preservation and highest overall acceptability.
Porandokht Barkhordari +3 more
wiley +1 more source
Food Science &Nutrition, Volume 14, Issue 8, August 2026.Volatile oils were extracted from the fruit and stem of Wurfbainia villosa by steam distillation, with yields of 1.87% for the fruit and 0.13% for the stem. GC–MS analysis identified 46 compounds in the fruit oil and 59 compounds in the stem oil, with 27 common components, 19 unique to the fruit, and 32 unique to the stem.
Yuancong Gu +4 more
wiley +1 more source
Food Science &Nutrition, Volume 14, Issue 8, August 2026.Parsley (Petroselinum crispum) was harvested at four ontogenetic stages (Pet‐1 to Pet‐4; May–September) under Mediterranean field conditions. Harvest timing significantly affected both agronomic yield and essential oil (EO) composition. Biomass yield peaked at Pet‐4 (10,076 kg da−1); EO content was highest at Pet‐2 (0.70%). GC–MS identified 55 volatile
Ayşe Betül Avci +3 more
wiley +1 more source
Evaluation ofp-cymene, a natural antioxidant
Pharmaceutical Biology, 2014 Several studies have demonstrated that essential oils and their major components have antioxidant activity. p-Cymene is a monoterpene and a major constituent of essential oils of various species of plants.This paper evaluated the antioxidant potential of p-cymene in the hippocampus of mice by determining the levels of thiobarbituric acid reactive ...
Talita Mendes, de Oliveira +6 more
openaire +2 more sources
Pest Management Science, Volume 82, Issue 8, Page 7510-7525, August 2026.Leaf age influences metabolomic profiling but not bioactivity of Eucalyptus globulus essential oils. Leaf age affects volatile levels of young and adult E. globulus oils, but not their bioactivity. Young leaf essential oil had higher contents of α‐ and β‐pinene. AEEO had higher levels of 1,8‐cineole and trans‐pinocarveol.
Mafalda Pinto +11 more
wiley +1 more source