Results 71 to 80 of about 46,992 (252)

QSPR Modeling and Experimental Determination of the Antioxidant Activity of Some Polycyclic Compounds in the Radical-Chain Oxidation Reaction of Organic Substrates. [PDF]

Molecules, 2022
Khairullina V, Martynova Y, Safarova I, Sharipova G, Gerchikov A, Limantseva R, Savchenko R.   +6 more
europepmc   +1 more source

Synthesis and Optical Properties of N-Arylnaphtho- and Anthra[2,3-d]oxazol-2-amines

Molecules
Oxazole, a versatile and significant heteroarene, serves as a bridge between synthetic organic chemistry and applications in the medicinal, pharmaceutical, and industrial fields.
Yuki Murata, Masato Kawakubo, Ayumi Maruyama, Mio Matsumura, Shuji Yasuike   +4 more
doaj   +1 more source

Linear π-conjugated polycyclic compounds consisting of four-, five-, and six-membered rings: benzo[1'',2'':3,4;4'',5'':3',4']bis(cyclobuta[1,2-c]thiophene). [PDF]

RSC Adv, 2023
Kuroiwa T, Asai D, Hashimoto S, Tahara K.   +3 more
europepmc   +1 more source

Mild construction of N-fused polycyclic compounds via Rh(III)/EosinY co-catalyze C−H activation

Green Synthesis and Catalysis
The construction of N-fused polycyclic compounds at room temperature via the combination of transition-metal catalyst and photocatalyst has been reported. This novel work has successfully realized LED irradiated C−H activation of iodonium ylides.
Zhouping Wu, Guanghui Lv, Zheng Lin, Jiangyan Tang, Jian Chen, Jianghong Liu, Li Hai, Yong Wu   +7 more
doaj   +1 more source

Catalytic condensation for the formation of polycyclic heteroaromatic compounds

Nature Communications, 2018
The development of novel chemical reactions converting biomass-derived alcohols into important classes of compounds is a particularly attractive strategy.
Daniel Forberg, Tobias Schwob, Rhett Kempe   +2 more
doaj   +1 more source

Catalytic C–F Bond Activation at Room Temperature: Enolate Cross‐Couplings Enabled by [Pd(1‐MeNAP)TFA]2 and LiHMDS

Angewandte Chemie International Edition, EarlyView.
Catalysts generated from the trifluoroacetate‐bridged methylnaphthyl‐palladium dimer [Pd(1‐MeNAP)TFA]2 and biarylphosphine ligands in combination with the base LiHMDS promote α‐arylation reactions of various enolates with non‐activated aryl fluorides at room temperature.
Nele Krüger, Jie Shen, Sourav Manna, Lamphiza O. Najiar, Lukas J. Gooßen   +4 more
wiley   +1 more source

The formation of polycyclic hydrocarbons during smoking process of cheese

Mljekarstvo, 2011
The smoking process determines the characteristic flavour, odour, colour and texture of several cheese varieties. Some smoke compounds are known to have bacteriostatic and antioxidant effects, and may act as preservatives. Smoked cheese is appreciated by
Arzu Akpinar-Bayizit, Tulay Ozcan, Oya Irmak Sahin, Lutfiye Yilmaz-Ersan   +3 more
doaj  

Granular Bed Filtration of Coal Pyrolysis Gas: Effects of Media Reactivity on Dust Removal and Products

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Granular bed filtration is a promising technology for removing dust from high‐temperature coal pyrolysis gas. In this work, the reactivity of coal pyrolysis products over ceramsite, char, ultrastable Y‐type (USY) zeolite, and quartz particles was compared.
Shuaiqiang Yang, Guangchao Ding, Lin Du, Wenli Song, Songgeng Li   +4 more
wiley   +1 more source

Potential contribution of biomass gasification‐based technology in energy transition: a technical review coupled with bibliometric studies

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biomass gasification technology has been extensively researched around the world; however, there is a need to evaluate the current research landscape and evolutionary direction of research in the broader context of energy transition. A systematic bibliometric analysis of the Web of Science database was performed for articles that fall within ...
Olasunkanmi Opeoluwa Adeoye, Electo Eduardo Silva Lora, Rubenildo Vieira Andrade, Leonardo Peña Pupo, René Lesme Jaén, Osvaldo José Venturini   +5 more
wiley   +1 more source

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source