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Global emissions of polychlorinated naphthalenes from 1912 to 2050 [PDF]

open access: yesNature Communications
Polychlorinated naphthalenes (PCNs) are persistent organic compounds that are regulated by the Stockholm Convention. Here, we estimate historical emissions from PCN production and use (1912-1987) and unintentional emissions from 20 categories (2000-2020).
Yuyan Luo   +3 more
doaj   +3 more sources

Ultrasound-promoted synthesis of 2-organoselanyl-naphthalenes using Oxone® in aqueous medium as an oxidizing agent [PDF]

open access: yesPeerJ, 2018
A green methodology to synthesize 2-organoselanyl-naphthalenes based on the reaction of alkynols with diaryl diselenides is described. The electrophilic species of selenium were generated in situ, by the oxidative cleavage of the Se–Se bond of diaryl ...
Gelson Perin   +6 more
doaj   +3 more sources

Towards a Synthesis of Naphthalene Derived Natural Products [PDF]

open access: goldMolecules, 2005
Dieckmann-type cyclization reactions have been employed in the synthesis of the alkyl substituted naphthoquinone 11 and the naphthalenes 10 and 12.
R. Barrow, M. McCulloch
doaj   +2 more sources

Chemical structure drives developmental toxicity of alkyl-substituted naphthalenes in zebrafish [PDF]

open access: yesEnvironment International
Naphthalene and its alkyl-substituted derivatives are among the most abundant polycyclic aromatic hydrocarbons (PAHs) in environmental and human exposure studies, yet their developmental toxicity and mode of action remain poorly understood due to ...
Mackenzie L. Morshead   +5 more
doaj   +2 more sources

Microbial Degradation of Naphthalene and Substituted Naphthalenes: Metabolic Diversity and Genomic Insight for Bioremediation

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Low molecular weight polycyclic aromatic hydrocarbons (PAHs) like naphthalene and substituted naphthalenes (methylnaphthalene, naphthoic acids, 1-naphthyl N-methylcarbamate, etc.) are used in various industries and exhibit genotoxic, mutagenic, and/or ...
Balaram Mohapatra, Prashant S. Phale
doaj   +2 more sources

Enantioselective aza-electrophilic dearomatization of naphthalene derivatives [PDF]

open access: yesNature Communications
The catalytic asymmetric dearomatization of naphthalenes is a pivotal strategy for generating enantioenriched three-dimensional aliphatic polycycles from flat aromatic precursors.
Jun Liu   +5 more
doaj   +2 more sources

A review on occurrence and analytical procedures for the evaluation of polychlorinated naphthalenes in human and environmental matrices

open access: yesEnvironmental Pollutants & Bioavailability, 2020
Polychlorinated naphthalenes (PCNs) are organochlorine compounds comprising  the naphthalene ring system, in which one to eight hydrogen atoms have been substituted with chlorine atoms, yielding 75 chlorinated congeners.
Idowu Victoria Agunbiade   +3 more
doaj   +2 more sources

Biomimetic Mn(III) porphyrin-catalyzed aromaticity-breaking epoxidation of electron-deficient naphthalene [PDF]

open access: yesNature Communications
Selective catalytic aromaticity-breaking epoxidation of arenes remains an ongoing research challenge, attributed to the stability of aromatic systems, the occurrence of over-oxidation, and the instability of epoxides.
Hongli Wu   +7 more
doaj   +2 more sources

Unveiling the Photodegradation Mechanism of Monochlorinated Naphthalenes under UV-C Irradiation: Affecting Factors Analysis, the Roles of Hydroxyl Radicals, and DFT Calculation [PDF]

open access: yesMolecules
Polychlorinated naphthalenes (PCNs) are a new type of persistent organic pollutant (POP) characterized by persistence, bioaccumulation, dioxin-like toxicity, and long-range atmospheric transport. Focusing on one type of PCN, monochlorinated naphthalenes (
Yingtan Yu   +6 more
doaj   +2 more sources

Peri-Substituted Acyl Pyrrolyl Naphthalenes: Synthesis, Reactions and Photophysical Properties [PDF]

open access: yesMolecules
The preparation of two 1-acyl-8-pyrrolylnaphthalenes (5 and 6) and one pyrrolone (8) are reported along with the issues complicating the preparations of other compounds.
Junkai Zhao   +2 more
doaj   +2 more sources

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