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
doaj +4 more sources
Self-Propelled Micromotors for Naked-Eye Detection of Phenylenediamines Isomers.
Analytical Chemistry, 2018 Tubular micromotors composed of a hybrid single-wall carbon nanotube (SW)-Fe2O3 outer layer and powered by a MnO2 catalyst are used for phenylenediamines isomers detection and discrimination.
R. María-Hormigos +2 more
semanticscholar +3 more sources
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
doaj +2 more sources
Regioselective Radical Arene Amination for the Concise Synthesis of ortho-Phenylenediamines [PDF]
Journal of the American Chemical Society, 2021 The formation of arene C–N bonds directly from C–H bonds is of great importance and there has been rapid recent development of methods for achieving this through radical mechanisms, often involving reactive N-centered radicals.
James E Gillespie +2 more
semanticscholar +5 more sources
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
doaj +2 more sources
Retreaded tires are an overlooked source of microplastics with distinct additive leaching and ecotoxicity [PDF]
Communications Earth & EnvironmentRetreaded tires constitute a substantial segment of the commercial tire market and are an important source of tire wear particles (TWPs), yet the environmental risks of this major microplastic category remain uninvestigated.
Hao Liu +8 more
doaj +2 more sources
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
doaj +2 more sources
Phenylenediamines and quinone derivatives: analytical advances
Reviews in Analytical ChemistryPhenylenediamines (PDs) and their N,N′-substituted derivatives (PPDs) are widely used antiozonants in rubber and polymer manufacturing, with significant release into the environment via tire wear particles.
Lucarini Fiorella, Staedler Davide
doaj +2 more sources
Cu(II)-catalyzed synthesis of quinoxalines from o-phenylenediamines and nitroolefins
Tetrahedron Letters, 2013 An easy and efficient copper-catalyzed reaction for the synthesis of quinoxalines from o-phenylenediamines and nitroolefins is developed. This reaction could proceed well without additional base and be applied to various available substrates with a one ...
Baohua Chen, Yuanjiao Li
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
doaj +2 more sources