Showing papers in "Polycyclic Aromatic Compounds in 2020"

TL;DR: In this article, a technique to compute topological indices of donut benzenoids and Kekulenes with applications to drugs by dissecting the original topological network into smaller strength was described.

TL;DR: A nanostructure belong to a significant and an extensively investigated compounds in chemical science as mentioned in this paper, it has been derived through engineering mechanism at the molecular scale. The most important o...

TL;DR: In this paper, the nanorod magnetic Fe2O3@Fe3O4@Fe4@Co3O 4 composite as a novel catalyst was synthesized and fully characterized using X-ray diffraction (XRD), energy-dispersive Xray spectroscopy (EDS), scanning elec...

TL;DR: In this article, a green and efficient protocol for the one-pot synthesis of dihydro-1H-indeno[1,2-b]pyridines and polysubstituted imidazoles using a recyclable acidic ionic liquid [H-NP]HSO4 was presented.

TL;DR: The CoVID-19 coronavirus disease emerged in Wuhan, China, and has spread rapidly to nearly every part of the world as discussed by the authors. Unfortunately, no drug or vaccine has been accepted for the treatmen.

TL;DR: In this paper, a review was carried to assess the occurrence and nature of heterocyclic amines and polycyclic aromatic hydrocarbons (PAHs) in cooked meat products.

TL;DR: In this article, the authors identified concentrations, molecular distributions, toxicities, and sources of polycylic aromatic hydrocarbons (PAHs) in street dust from different land use of Bushehr city in southwest Iran.

TL;DR: In this paper, the conversion of LPG as an abundance and cheap feedstock to valuable aromatic compounds was studied over modified ZSM-5 zeolite and optimum reaction conditions such as temperature, wight hour spac...

TL;DR: A wide range of new drugs emerge each year with the rapid development of the manufacture of medicines as mentioned in this paper, and a wide class of drugs are introduced each year, with the indicators of these drug molecular structures calculated in view of defining the...

TL;DR: A new organic-inorganic nano hybrid ionic liquid based on polyoxometalate H2 [MIMBS]4 [P2W18O62]·11 H2O (MIMbs − P 2W18), originated from self-assembling of Dawson-type polyoxide O62]6−...

TL;DR: In this article, the chemical components (e.g., chemical components) of PM2.5 are characterized and compared with those of other air pollution sources. But, the results were limited to a single PM 2.5 source.

TL;DR: Many 1,4-dihydropyridines hybrid with 1,2, 4-triazole 4a-l were synthesized by the reaction of 5,5′-(2,6-dimethyl-4-phenyl-1,4dihyropyridine-3,5-diyl)bis(4-amino-4H-1.2,4, 4H)-1, 2, 4.4 triazole-3-thiol) as mentioned in this paper.

TL;DR: In this paper, a new series of biscoumarin derivatives 3a-n were synthesized and evaluated for their α-glucosidase inhibitory activities, and the reaction of the 4-aminocoumarlin with benzaldehyde derivatives led to t...

TL;DR: In this paper, a catalytic methodology was proposed that enables the green, operationally simple and convenient synthesis of corresponding polyfunctionalized piperidine scaffolds via one-pot Knoevenagel- intramole.

TL;DR: In this article, p-tert-butyl at position 2 and acetamide bridged 4-substituted piperazine/piperidine at position 5 bearing benzoxazole derivatives were evaluated for their in vitro inhibitory activi...

TL;DR: Triethylammonium hydrogen sulfate [Et3NH][HSO4] has been studied to be an efficient ionic liquid catalyst for the synthesis of biologically potent coumarin derivatives as discussed by the authors.

TL;DR: In this article, the results for determination of the concentrations and distribution patterns of polycyclic aromatic hydrocarbons (PAHs) in urban street dusts from the Nigerian megacity, Lagos, were presented.

TL;DR: In this paper, the expected values of the harmonic and spectral properties of the polyphenyl chains with n hexagons were investigated, where n is the number of hexagons in the polycyclic aromatic hydrocarbons.

TL;DR: In this article, the topological properties of silicon carbide compounds have been studied and expressions for the molecular topological features of these compounds are given. Topological properties include properties of the topology, properties of properties, properties, and topology properties.

TL;DR: A large number of the different proposed systems proposed have a clear inherent relationship with regard to the structural properties of chemical substances, medicines and their molecular structures, but how these relationships are determined is still unclear.

TL;DR: In this article, the degree-valence-based molecular descriptors for coronoid polycyclic aromatic hydrocarbons were computed for various types of coronoids, such as coronoids with respect to degree and valence.

TL;DR: In this article, the impact of 16 polycyclic aromatic hydrocarbons (PAHs) in Indian tandoori and tawa breads served in 8 different profile restaurants of Dhanbad city was examined.

TL;DR: The concentrations of the 16 US EPA polycyclic aromatic hydrocarbons (PAHs) were determined in the floodplain soils of the lower parts of the River Niger, Nigeria in 2013 and 2014 after recent floo...

TL;DR: Ethylammonium N-sulfonic acid chloride, a sulfonic acid functionalized ionic liquid, was prepared, characterized and used as an efficient catalyst for synthesis of various xanthene derivatives.

TL;DR: In this article, a graph in which atoms are taken as vertices and bonds can be shown by edges is called a molecular graph and the indices showing their bioactivity as well as their physio-c...

TL;DR: The molecular structure of hydroxychloroquine (HCQ) used in the treatment of malaria is recently suggested for emergency used in COVID-19.

TL;DR: In this article, the authors used various computational tools to analyze the geometry and properties of the derivatives of the benzimidazole derivatives flubendazole (FD1) and mebendazoles (MD2) and ricobendazolines (RD3) and found that FD1 is more stable than MD2 and RD3.

TL;DR: One-pot synthesis of 3,4,5,6-tetrahydropyrimidinone/thione derivatives was successfully performed in high yields through the reaction of aromatic aldehyde, β-dica....

TL;DR: In this paper, the polycyclic aromatic hydrocarbon (PAH) levels in urban topsoils (0-10 cm) affected by Combined Heat and Power (CHP) plant and oil refinery (Antipinsk) were evaluated.

TL;DR: In this article, a highly efficient method was described for the synthesis of dihydropyrano[3,2-c]chromenes and biscoumarins using ionic liquids (ILs) supported on nano-FeNi3 as catalyst.