Results 21 to 30 of about 54,719 (255)
Diquaternary Ammonium Compounds in Zeolite Synthesis: Cyclic and Polycyclic N-Heterocycles Connected by Methylene Chains [PDF]
, 2009 An additional dimension has been added to our long-standing studies in high silica zeolite synthesis via a guest/host synergism. We have created and studied the impact of making symmetric diquaternary ammonium compounds, by varying the chain length ...
Burton, Allen W. +3 more
core +1 more source
Alkaloids of the Genus Datura: Review of a Rich Resource for Natural Product Discovery
Molecules, 2021 The genus Datura (Solanaceae) contains nine species of medicinal plants that have held both curative utility and cultural significance throughout history.
Maris A. Cinelli, A. Daniel Jones
doaj +1 more source
Gold-Catalyzed Intramolecular Aminoarylation of Alkenes: C-C Bond Formation through Bimolecular Reductive Elimination [PDF]
, 2010 Gold-ilocks and the 3 mol % catalyst: Bimetallic gold bromides allow the room temperature aminoarylation of unactivated terminal olefins with aryl boronic acids using Selectfluor as an oxidant.
Benitez, Diego +6 more
core +1 more source
A Photocatalytic Method for the Degradation of Pyrrolidine in Water [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2000 A method for the degradation of pyrrolidine in water is described. The method relaies on the photocatalytic degradation of pyrrolidine to CO2 and NH3 by UV irradiation and using titanium dixide semiconductor as a photocatalyst.
Mohammad Hossein Habibi +1 more
doaj
Cobalt-Catalyzed (Hetero)arylation of Saturated Cyclic Amines with Grignard Reagents
Molecules, 2018 (Hetero)aryl substituted saturated cyclic amines are ubiquitous scaffolds in biologically active molecules. Metal-catalyzed cross-couplings between halogeno N-heterocycles and organometallic species are efficient and modular reactions to access these ...
Baptiste Barré +3 more
doaj +1 more source
Opposite effects of two zinc(II) dithiocarbamates on NF-kB pathway [PDF]
, 2007 Inhibiting nuclear factor-kappaB (NF-kB) activation in anticancer and antiinflammatory therapy is of topical interest. Current research in molecular biology has dramatically advanced in the understanding of the cellular events involved in NF-kB induction.
Boris Cvek +5 more
core +2 more sources
Beilstein Journal of Organic Chemistry, 2009 An enantioselective route to four tricyclic amino acids and N-tosylamides, composed of a central norbornane framework with a 2-endo,3-endo-annelated pyrrolidine ring and a 5-endo-C1 or -C2 side chain, has been developed. A key intermediate was the chiral,
Matthias Breuning +6 more
doaj +1 more source
Molecules, 2010 The aim of this study was to investigate the in vitro cellular activity of novel spiroisoxazoline type compounds against normal and cancer cell lines from lung tissue (Hs888Lu), neuron-phenotypic cells (SH-SY5Y), neuroblastoma (SH-SY5Y), human ...
Nigar Najim +4 more
doaj +1 more source
N-Sulfinylpyrrolidine-containing ureas and thioureas as bifunctional organocatalysts
Beilstein Journal of Organic Chemistry, 2021 The synthesis of bifunctional N-sulfinylureas and thioureas with an appended pyrrolidine unit is presented. These organocatalysts were evaluated in Michael additions of aldehydes to nitroalkenes both under solvent-free conditions and in solution.
Viera Poláčková +5 more
doaj +1 more source
Tetraethyl(pyrrolidine-2,2-diyl)bisphosphonate [PDF]
Molecules, 2001 The synthesis of the title compound is already described [1, 2] and we report here the fully optimized procedure.[...]
Olive, Gilles, Jacques, Alain
openaire +3 more sources