Results 31 to 40 of about 1,896 (172)
Advanced Science, EarlyView.A nickel‐catalyzed three‐component reductive fluoroalkylation‐amination strategy of N‐vinylamides for the direct access to the α‐amidyl‐β‐difluoroalkyl amines was reported here. The synthetic method features with broad substrate scope, mild conditions, high functional group tolerance, and convenience to handle.
Chang Xu +8 more
wiley +1 more source
Protonation of maleic and fumaric acid in aqueous sulfuric acid solutions [PDF]
Journal of the Serbian Chemical Society, 2000 The protonations of maleic and fumaric acid in an acidic medium (aqueous solutions of sulfuric acid) were followed spectrophotometrically at room temperature. The acid-base equilibria were characterised qualitatively and quantitatively. The pKBH+
Jankovska Katica +2 more
doaj +3 more sources
Bulletin of the Chemical Society of Ethiopia, 2014 Some aryl-aryl 1H pyrazoles have been synthesised by cyclization of aryl chalcones and hydrazine hydrate in the presence of SOCl2. The yields of the pyrazoles are more than 85%.
K. Ranganathan +5 more
doaj +1 more source
Synthesis, spectral correlation and insect antifeedant activities of some 2-benzimidazole chalcones
Journal of Saudi Chemical Society, 2016 Some substituted styryl 2-benzimidazole ketones have been synthesised by fly-ash:H2SO4 catalysed aldol condensation of 2-benzimidazole methyl ketone and various substituted benzaldehydes in microwave oven. The yields of these chalcones are more than 70%.
P. Janaki, K.G. Sekar, G. Thirunarayanan
doaj +1 more source
Binding Constants of Substituted Benzoic Acids with Bovine Serum Albumin
Pharmaceuticals, 2020 Experimental data on the affinity of various substances to albumin are essential for the development of empirical models to predict plasma binding of drug candidates. Binding of 24 substituted benzoic acid anions to bovine serum albumin was studied using
Diliara Khaibrakhmanova +2 more
doaj +1 more source
Bulletin of the Chemical Society of Ethiopia, 2015 Some azomethines including substituted benzylidene-4-chlorobenzenamines (E-imines) have been synthesized by fly-ash: PTS catalyzed microwave assisted condensation of 4-chloroaniline and substituted benzaldehydes under solvent-free conditions.
R. Suresh +13 more
doaj +1 more source
The Substituent Effect on the Radical Scavenging Activity of Apigenin
Molecules, 2018 Flavonoids widely found in natural foods are excellent free radical scavengers. The relationship between the substituent and antioxidative activity of flavonoids has not yet been completely elucidated. In this work, the antioxidative activity of apigenin
Yan-Zhen Zheng +3 more
doaj +1 more source
Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes
Chemistry – A European Journal, EarlyView.Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Emma J. Finfer +2 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.A facile sonochemical method for rapid and gram‐scale synthesis of ligand‐tunable cobalt‐oxo‐cubanes is reported. Electrochemical studies reveal a Co4O4‐centered one‐electron oxidation and PCET pathway, while identifying Co2+ impurities as key disruptors of true cubane redox chemistry.
Satyapriya Nath +8 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.This work reports a new metal–ester bonding strategy for anchoring molecular catalysts to metal oxide supports, achieving exceptionally high surface loadings. Catalyst reactivity is predictably tuned by the support's properties, enabling control over electronic behavior and reaction pathways, thus opening new possibilities for designing highly ...
Joseph J. Kuchta III +7 more
wiley +2 more sources