Beilstein Journal of Organic Chemistry, 2017 3-Acylmethylidene-3,4-dihydroquinoxalin-2(1H)-ones are compounds which possess a wide range of physical and pharmaceutical applications. These compounds can be easily prepared by cyclocondensation of o-phenylenediamines and aroylpyruvates ...
Juraj Dobiaš +3 more
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Para-phenylenediamines and their oxidative derivatives in infant formulas in China: Occurrence and health implications [PDF]
Food Chemistry: XPara-phenylenediamines (PPDs) and their quinone derivatives (PPD-Qs) are ubiquitous in the environment, while data on their occurrence in foods are scarce. In this study, twelve PPDs and PPD-Qs were measured in infant formula, and their daily intakes and
Zifu Shao, Chunyan Gao, Zhixiong Shi
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A mild and scalable one-pot synthesis of N-substituted 2-aminobenzimidazoles via visible light mediated cyclodesulfurization [PDF]
Scientific ReportsA visible light mediated photocatalyst-free synthesis of N-substituted 2-aminobenzimidazoles directly from o-phenylenediamines and isothiocyanates is developed in a one-pot fashion.
Tanawat Rerkrachaneekorn +4 more
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Structural and Quantitative Analysis of Polyfluoroalkyl Substances (PFASs) and Para-Phenylenediamines (PPDs) by Direct Analysis in Real Time Ion Mobility Mass Spectrometry (DART-IM-MS) [PDF]
MoleculesPolyfluoroalkyl substances (PFASs) and para-phenylenediamines (PPDs) are emerging classes of anthropogenic contaminants that are environmentally persistent (most often found in ground and surface water sources), bioaccumulative, and harmful to human ...
Calum Bochenek +3 more
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Synthetic Communications, 2018 The synthesis of N-heterocycles of quinoxalines has been developed by an efficient protocol of one-pot annulation of alkynes with o-phenylenediamines. A variety of quinoxalines were prepared in good to high yields in the presence of catalytic amount of ...
Xun-Xiang Guo
exaly +2 more sources
Oxidative stress generated DNA damage by 6PPD and other tyre additives in A549 human lung epithelial cells [PDF]
Scientific ReportsTyre additives such as p-phenylenediamines (PPDs) and benzothiazoles (BTs) are ubiquitous in the environment. They have been frequently detected in urban air and have been detected in the human body.
Samuel Hyman +10 more
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Network Toxicology and Molecular Docking to Elucidate the Mechanisms of Intestinal Toxicity Induced by P-Phenylenediamine Antioxidants and Their Quinone Derivatives [PDF]
ToxicsP-phenylenediamines (PPDs) and their quinone derivatives (PPDQs), emerging pollutants widespread in urban environments, exhibit biotoxicological risks.
Hui Zou +4 more
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Mild and Green Methodology for NIS-Mediated Synthesis of Quinoxalines from o‑Phenylenediamines and Sulfoxonium Ylides at Room Temperature [PDF]
ACS OmegaHumaira Parveen +4 more
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Green Synthesis and Catalysis, 2022 A protecting-group-free enantioselective tandem allylic substitution of o-phenylenediamines and o-aminophenols is realized for the first time with a Pd-WingPhos catalyst, providing expedient access to a series of chiral vinyl-substituted heterocycles in ...
Xuehua Kang +5 more
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Green SDS-assisted synthesis of quinoxaline derivatives in the water [PDF]
شیمی کاربردی روز, 2016 A simple, practical and convenient procedure for the synthesis of quinoxaline derivatives has been developed by reaction of 1,2-phenylenediamines with 1,2-diketones in the presence of sodium dodecyl sulfate (SDS) in the aqueous medium at room temperature
Elham Ghobadi +2 more
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