Results 31 to 40 of about 59,471 (323)

Dynamic Combinatorial Libraries: From Exploring Molecular Recognition to Systems Chemistry [PDF]

open access: yes, 2013
Dynamic combinatorial chemistry (DCC) is a subset of combinatorial chemistry where the library members interconvert continuously by exchanging building blocks with each other.
Li, Jianwei,   +2 more
core   +2 more sources

Attainment of Pentagonal-Bipyramidal LnIII Complexes from a Planar Pentadentate Ligand

open access: yesProceedings, 2020
The search for mononuclear lanthanoid-based single-ion magnets (SIMs) has increased the interest in some coordination environments with low coordination numbers, in combination with an axial symmetry, as they could maximize the anisotropy of complexes of
Julio Corredoira-Vázquez   +3 more
doaj   +1 more source

Ethyl 4-{1-[(2,4-dinitrophenyl)hydrazono]ethyl}-5-(2-naphthylmethoxymethyl)isoxazole-3-carboxylate

open access: yesActa Crystallographica Section E, 2009
The title compound, C26H23N5O8, was prepared and its structure investigated to further develop a working hypothesis for the essential binding pharmacophore for ligands of the System Xc- transporter [Patel et al. (2004).
Nicholas R. Natale   +5 more
doaj   +1 more source

Concentration dependent tautomerism in green [Cu(HL1)(L2)] and brown [Cu(L1)(HL2)] with H2L1 = (E)-N’-(2-hydroxy-3-methoxybenzylidene)- benzoylhydrazone and HL2 = pyridine-4-carboxylic (isonicotinic) acid [PDF]

open access: yes, 2011
The in situ formed hydrazone Schiff base ligand (E)-N’-(2-hydroxy-3-methoxybenzylidene)-benzoylhydrazone (H2L1) reacts with copper(II) acetate in ethanol in the presence of pyridine-4-carboxylic acid (isonicotinic acid, HL2) to green-[Cu(HL1)(L2)]・H2O ...
Ghorbanloo, Massomeh   +5 more
core   +1 more source

Synthesis and Antimicrobial Studies of Coumarin-Substituted Pyrazole Derivatives as Potent Anti-Staphylococcus aureus Agents

open access: yesMolecules, 2020
In this paper, synthesis and antimicrobial studies of 31 novel coumarin-substituted pyrazole derivatives are reported. Some of these compounds have shown potent activity against methicillin-resistant Staphylococcus aureus (MRSA) with minimum inhibitory ...
Rawan Alnufaie   +6 more
doaj   +1 more source

Obstruction of Water Uptake in cut Chrysanthemum Stems after Dry Storage: Role of Wound-induced Increase in Enzyme Activities and Air Emboli [PDF]

open access: yes, 2009
Hydraulic conductance of cut chrysanthemum stems was lowered by the aspiration of air as well as by a wound-induced plant response. By measuring the hydraulic conductance of stem segments in which air could be introduced into and/or removed from the ...
Arevalo-Galarza, L., Meeteren, U., van
core   +2 more sources

Semi-empirical design and synthesis of novel 4-hydroxy-6-sulphonaphthyl azohydroxynaphthalenes with predominant hydrazone form

open access: yesScientific African
Due to their enhanced photochromic effects, hydrazone forms of tautomeric azo compounds are commercially preferred as photoreceptors and binary switches.
Olusegun E. Thomas, Olajire A. Adegoke
doaj   +1 more source

Lipase catalysed kinetic resolution of racemic 1,2-diols containing a chiral quaternary center [PDF]

open access: yes, 2018
Optically active 1,2-diols are valuable buildings blocks in organic synthesis. In the present paper, a set of racemic 1,2-diols with an ester functional group are prepared, starting from -ketoesters in a three-step procedure with moderate yields.
Gonzalo Calvo, Gonzalo de
core   +2 more sources

Synthesis and antibacterial activity against ralstonia solanacearum for novel hydrazone derivatives containing a pyridine moiety

open access: yesChemistry Central Journal, 2012
Background Ralstonia solanacearum, one of the most important bacterial diseases on plants, is a devastating, soil-borne plant pathogen with a global distribution and an unusually wide host range.
Wu Jian   +6 more
doaj   +1 more source

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