Results 1 to 10 of about 5,923 (229)

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

Environment 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, Lisa Truong, Steven J. Carrell, Richard Scott, Kim A. Anderson, Robyn L. Tanguay   +5 more
doaj   +2 more sources

Enantioselective aza-electrophilic dearomatization of naphthalene derivatives [PDF]

Nature Communications
The catalytic asymmetric dearomatization of naphthalenes is a pivotal strategy for generating enantioenriched three-dimensional aliphatic polycycles from flat aromatic precursors.
Jun Liu, Haina Liu, Meijuan Zhou, Xiaolong Yu, Gang Zhao, Hongyu Wang   +5 more
doaj   +2 more sources

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

Nature 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, Jialun Xu, Junjie Tai, Jingkun Gao, Yunfei Ge, Guijie Li, Yuan-Bin She, Yun-Fang Yang   +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]

Molecules
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, Mengdi Liu, Shimeng Wang, Chaoxing Zhang, Xue Zhang, Li Liu, Shuang Xue   +6 more
doaj   +2 more sources

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

Nature 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, Yechao Shen, Minghui Zheng, Guorui Liu   +3 more
doaj   +2 more sources

Naphthalene

, 2021
\(\bf Objective\) This cross-sectional study determined whether acute sensory irritative or (sub)chronic inflammatory effects of the eyes, nose or respiratory tract are observed in employees who are exposed to naphthalene at the workplace. \(\bf Methods\) Thirtynine healthy and non-smoking male employees with either moderate (\(\it n\) = 22) or high (\(
Sucker, Kirsten, Zschiesche, Wolfgang (Dr. med.), Aziz, Mohammed (Dr. med.), Drews, Tanja, Hummel, Thomas (PD Dr. med.), Raulf, Monika (Prof. Dr. rer. nat.), Weiß, Tobias (Dr. rer. nat.), Bury, Daniel (Dr. rer. nat.), Breuer, Dietmar (Prof. Dr.), Werner, Silke (Dipl.), Friedrich, Claudia, Bünger, Jürgen (Prof. Dr. med.), Pallapies, Dirk (Dr. med.), Brüning, Thomas (Prof. Dr. med.)   +13 more
  +6 more sources

Dihydroisocoumarins, Naphthalenes, and Further Polyketides from Aloe vera and A. plicatilis: Isolation, Identification and Their 5-LOX/COX-1 Inhibiting Potency

Molecules, 2021
The present study aims at the isolation and identification of diverse phenolic polyketides from Aloe vera (L.) Burm.f. and Aloe plicatilis (L.) Miller and includes their 5-LOX/COX-1 inhibiting potency.
Hans Wilhelm Rauwald, Ralf Maucher, Gerd Dannhardt, Kenny Kuchta   +3 more
doaj   +1 more source

Stereoselective [4+2] Cycloaddition of Singlet Oxygen to Naphthalenes Controlled by Carbohydrates

Molecules, 2021
Stereoselective reactions of singlet oxygen are of current interest. Since enantioselective photooxygenations have not been realized efficiently, auxiliary control is an attractive alternative.
Marcel Bauch, Werner Fudickar, Torsten Linker   +2 more
doaj   +1 more source

Function of aromatic compounds as indicators in laboratory experiments of heavy oil with fire flooding

Shiyou shiyan dizhi, 2022
Identifying whether high-temperature oxidation is realized in fire flooding has become one of the technical difficulties in evaluating the effect of fire flooding for heavy oil reservoirs. In order to study how the chemical properties of crude oil varied
Hongxing YAN, Junyin YANG, Wenrui JIANG, Yanfang ZHANG, Peixin LI   +4 more
doaj   +1 more source

Polychlorinated naphthalenes in human milk: Health risk assessment to nursing infants and source analysis

Environment International, 2020
Polychlorinated naphthalenes are teratogenic environmental contaminants. Mother milk is the most important food for nursing infants. The World Health Organization actively promotes breastfeeding for its immunological, psychological, and economic ...
Cui Li, Lei Zhang, Jingguang Li, Yihao Min, Lili Yang, Minghui Zheng, Yongning Wu, Yuanping Yang, Linjun Qin, Guorui Liu   +9 more
doaj   +1 more source