Results 11 to 20 of about 25,615 (245)

Cyclization of Hydrazones of 2-Acetyl-1-naphthol and 1-Acetyl-2-naphthol with Triphosgene. Synthesis of Spiro Naphthoxazine Dimers [PDF]

open access: yesMolecules, 2009
Cyclization of hydrazones derived from 2-acetyl-1-naphthol and 1-acetyl-2-naphthol with triphosgene gave naphtho[1,2-e]-1,3-oxazines, naphtho[2,1-e]-1,3-oxazines or their spiro dimers depending on the molar ratio of triphosgene used for the cyclization.
Abdullah Al-Majid   +1 more
exaly   +4 more sources

Construction and application of electrochemical sensors for the detection of naphthol [PDF]

open access: yesJournal of Hebei University of Science and Technology, 2016
A poly(L-cysteine)/graphene oxide composite modified glassy carbon naphthol electrode is constructed, which is used for simultaneous determination of 1-naphthol (1-NAP) and 2-naphthol (2-NAP).
Jujie REN   +5 more
doaj   +2 more sources

OBSERVATIONS ON NAPHTHOL STAINING AND THE HISTOCHEMICAL LOCALIZATION OF ENZYMES BY NAPHTHOL-AZO DYE TECHNIQUE [PDF]

open access: yesJournal of Histochemistry & Cytochemistry, 1957
A group of naphthols—1- and 2-naphthol, 6-benzoyl-2-naphthol and 6-bromo-2-naphthol—have been investigated in relation to their tissue affinity. It has been found that naphthol binding is mainly dependent on the solubility of the naphthols and on the type of tissue considered.
V. DEFENDI
openaire   +4 more sources

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

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   +2 more sources

Synthesis of 14H-dibenzoxanthenes in green media using Sn(II)/nano silica as an efficient catalyst

open access: yesFrontiers in Chemistry, 2022
In this project, Sn(II)/nano silica has been prepared using a simple deposition of SnCl2.2.H2O on nano-silica. The prepared catalyst has been used as a green and reusable catalyst for synthesis of 14H-dibenzoxanthenes through a one-pot condensation ...
Hossein Tavakol, Mahdieh Firouzi
doaj   +1 more source

Simultaneous Detection of Naphthol Isomers with a 3D-Graphene-Nanostructure-Based Electrochemical Microsensor

open access: yesChemosensors, 2023
Naphthol is a widely used chemical and medical detection biomarker, but it is harmful to human health and the environment. Therefore, a highly sensitive detection method for naphthol is urgently required.
Jiaci Shi   +6 more
doaj   +1 more source

Azo or Not: Crystallographic Insights into β-Naphthol Reds [PDF]

open access: yes, 2022
β-Naphthol reds are a group of widely used pigments with prominent historical, commercial, and cultural significance. In in-dustry, and especially within the art and heritage community, they are known as azo pigments.
Matthew , Heaney   +2 more
core   +1 more source

Banana Trunk Fibers (BF) Immobilized in Chitosan (CS) Natural Composites (BF-i-CS), and Its Application in Controlled-Release of Pesticides

open access: yesJournal of Natural Fibers, 2021
Novel green natural composites comprising of BF immobilized in CS (BF-i-CS) were prepared and characterized by means of Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM).
Muhammad Rahim   +1 more
doaj   +1 more source

Efficacy of Trichoderma fungal species in the removal of α-naphthol from potato dextrose agar media [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2019
Alpha-naphthol is a two-ring aromatic hydrocarbon with toxic and mutagenic properties. Bioremediation technology is considered to be an efficient, economical, and environmentally friendly approach to the remediation of the sites contaminated with ...
Fariba Mohsenzadeh, Akram Ranjbar
doaj   +1 more source

Chronic Exposure to Low-Molecular-Weight Polycyclic Aromatic Hydrocarbons Promotes Lipid Accumulation and Metabolic Inflammation

open access: yesBiomolecules, 2023
2-naphthol is a low-molecular-weight (LMW) polycyclic aromatic hydrocarbon (PAH) and air pollutant associated with childhood obesity. There has been a recent emergence of studies on the consequences of PAHs on human health.
Asia Bright   +4 more
doaj   +1 more source

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