Results 21 to 30 of about 46,076 (249)

1-(Hydroxyiminomethyl)-2-naphthol [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
The title compound, C(11)H(9)NO(2), was prepared by a condens-ation reaction of 2-hydr-oxy-1-naphthaldehyde with hydroxyl-ammonium chloride in refluxing ethanol. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, inter-molecular O-H⋯O and C-H⋯O hydrogen-bond inter-actions result in a two-dimensional network.
Jianfang Dong   +3 more
openaire   +3 more sources

Development of covalent triazine frameworks as heterogeneous catalytic supports [PDF]

open access: yes, 2019
Covalent triazine frameworks (CTFs) are established as an emerging class of porous organic polymers with remarkable features such as large surface area and permanent porosity, high thermal and chemical stability, and convenient functionalization that ...
Krishnaraj, Chidharth   +3 more
core   +1 more source

Potentials of N-(2, 4-dinitro-1-naphthyl)-p-toluenesulphonamide and 2, 4-dinitro-1-naphthol as novel charge transfer acceptors in pharmaceutical analysis of some quinolones and cephalosporins

open access: yesFuture Journal of Pharmaceutical Sciences, 2022
Background Quinolones and cephalosporins are antibiotic agents with activity against Gram-positive and Gram-negative bacteria. They contain chromophores and amine groups which are electron-rich centres capable of donating electrons to electron-deficient ...
O. E. Umoh, O. A. Adegoke, D. E. Effiong
doaj   +1 more source

Decomposition of petroleum contaminants (naphthol) by ultraviolet (UV) radiation using a green-synthetized titanium dioxide (TiO₂) catalyst [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2020
A simple and eco-friendly method for synthesis nanoparticles is using a green chemistry technique. Also, the utilization of green nanoparticles for the treatment of industrial wastewater could be an outstanding plan to confront environmental pollutions ...
Pantea Arjmandi, Fariba Hargalani
doaj   +1 more source

THE BETA-NAPHTHOL VS. HYDRO-NAPHTHOL CONTENTION. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1889
"Who shall decide when doctors disagree?" says the poet, with as close accordance with a general truth as reason and poetry require. Yet we shall always find, even in the case of the disagreement of doctors, criteria by which rational decision may be reached. In the first place, the opinions of individual doctors, as well as of persons not doctors, are
openaire   +1 more source

Organocatalytic synthesis of axially chiral atropisomers [PDF]

open access: yes, 2017
This review summarises the recent progress made in the organocatalytic synthesis of atropisomeric compounds. Methodologies based on dynamic kinetic resolution and direct access to BINOL-like biaryls are described.
Renzi, P.
core   +1 more source

Quantitative analysis of naphthalene, 1-naphthol and 2-naphthol at nanomol levels in geothermal fluids using SPE with HPLC

open access: yesMethodsX, 2023
Naphthalene (NAP), 1-naphthol (1-NAP) and 2-naphthol (2-NAP) are the thermal decomposition products of naphthalene sulfonates making them potentially new geothermal reservoir permeability tracers, however, to date, no sensitive and fast detection method ...
Lucjan Sajkowski   +2 more
doaj   +1 more source

Interatomic Distances in Covalent Molecules and Resonance between Two or More Lewis Electronic Structures [PDF]

open access: yes, 1932
In a paper to be published in the Zeitschrift für Kristallographie, Professor M. L. Huggins and I have formulated tables of radii for use in crystals containing electron-pair bonds. With the aid of these tables, we have also constructed a table of radii (
Pauling, Linus
core   +2 more sources

Four cytotoxic N4-substituted thiosemicarbazones derived from 2-hydroxynaphthalene-1-carboxaldehyde [PDF]

open access: yes, 2003
The X-ray crystal structures are reported of four novel and potentially O,N,S-tridentate donor ligands that demonstrate antitumour activity.
Bernhardt, P. V.   +3 more
core   +1 more source

Evaluation of the Effect of Azo Group on the Biological Activity of 1-(4-Methylphenylazo)-2-naphthol

open access: yesE-Journal of Chemistry, 2008
Azo-2-naphthol and 2-naphthol were tested against five microorganisms: Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa and Streptococcus faecalis.
V. Mkpenie   +3 more
doaj   +1 more source

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