Results 81 to 90 of about 5,075 (257)
Štetnici artičoke (Cynara scolymus L.) na području Mediterana
Glasnik Zaštite Bilja, 2023 Artičoka (Cynara scolymus L.) je višegodišnja biljna vrsta koja zahvaljujući svojim prehrambenim ali i zdravstvenim značajkama postaje sve raširenija kultura na području primorske hrvatske i otoka. Tijekom svog razvoja artičoka je podložna napadu brojnih
Kristijan Franin +2 more
doaj
, 2015 A novel, efficient and eco-friendly procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydroxanthenes is described through one-pot condensation of 2-naphthol and dimedone with aryl aldehydes in the presence of nano silica ...
Ghasemzadeh, MA +2 more
core
, 2019 A metal-free C(sp3)–H/N–H cross-coupling of azoles with xanthenes and related activated arylmethylenes is presented. Both the use of azoles and the activation pattern of C(sp3)–H sources are essential for this transformation. In the presence of 2.0 equiv
Ying Dong (41989) +6 more
core +1 more source
Orbital: The Electronic Journal of Chemistry, 2015 Tannic acid explore a highly efficient catalytic activity for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives in excellent yields via cyclocondensation of aromatic aldehyde, β-naphthol and dimedone.
Deepak S. Kawade +3 more
doaj +3 more sources
Design of a New Nano Hinge Molecular Machine Based on Nitrogen Inversion: Computational Investigation [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2016 Ab initio calculations were employed to investigate nitrogen inversion as a configuration change that can supply an infinitely useful switchable control mechanism for some complex systems.
Sara Soleimani Gorgani +1 more
doaj
Published as part of Myers, Luke William, Kondratieff, Boris C, Grubbs, Scott A, Pett, Lindsey A, DeWalt, R. Edward, Mihuc, Timothy B & Hart, Lily Veronica, 2025, Distributional and species richness patterns of the stoneflies (Insecta, Plecoptera) in New York State, pp.
Myers, Luke William +6 more
openaire +2 more sources
Dearomatization with Axial‐to‐Central Chirality Conversion
European Journal of Organic Chemistry, Volume 29, Issue 17, 5 May 2026.Atropisomers are exciting synthetic targets with unique properties, which find applications in many fields of chemistry. However, considering them as substrates is not very frequent, notably in the context of dearomatization reaction. We wish to discuss the different strategies for the dearomatization of aromatic atropisomers with axial‐to‐central ...
Morgane Mando +3 more
wiley +1 more source
, 2016 A facile synthesis of xanthenes and acridines based on a cascade nucleophilic addition−cyclic Michael addition process of arynes and phenols/anilines substituted with α,β-unsaturated groups at the ortho positions is described.
Xian Huang (820390) +1 more
core +1 more source
Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes
Journal of Chemistry, 2013 The photochemical behavior of xanthene dyes (fluorescein, erythrosine, and eosin) with colloidal SnO2 nanoparticles was probed by UV-visible, steady state, and time resolved fluorescence measurements. The prepared SnO2 nanoparticles were characterized by
N. Nagarajan +3 more
doaj +1 more source
Croatica Chemica Acta, 2015 Oxidative stress is directly related to several diseases and symptoms, where antioxidant compounds, such as xanthenes, may become important in prevention and/or treatmant.
Elma Veljović +7 more
doaj +1 more source