Results 41 to 50 of about 18,813 (295)

Flavouring Group Evaluation 21 Revision 6 (FGE.21Rev6): thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30

EFSA Journal, 2023
The Panel on Food additives and Flavourings (FAF) was requested to evaluate the flavouring substances 2,4‐dimethyl‐3‐thiazoline [FL‐no: 15.060] and 2‐isobutyl‐3‐thiazoline [FL‐no: 15.119] in Flavouring Group Evaluation 21 revision 6 (FGE.21Rev6).
EFSA Panel on Food Additives and Flavourings (FAF), Maged Younes, Gabriele Aquilina, Laurence Castle, Gisela Degen, Karl‐Heinz Engel, Paul J Fowler, Maria Jose Frutos Fernandez, Peter Fürst, Ursula Gundert‐Remy, Rainer Gürtler, Trine Husøy, Melania Manco, Sabina Passamonti, Peter Moldeus, Romina Shah, Ine Waalkens‐Berendsen, Matthew Wright, Romualdo Benigni, Claudia Bolognesi, Kevin Chipman, Eugenia Cordelli, Karin Nørby, Camilla Svendsen, Maria Carfì, Wim Mennes   +25 more
doaj   +1 more source

Synthesis and Evaluation of 3-Halobenzo[b]thiophenes as Potential Antibacterial and Antifungal Agents

Pharmaceuticals, 2021
The global health concern of antimicrobial resistance has harnessed research interest to find new classes of antibiotics to combat disease-causing pathogens.
Prerna J. Masih, Tanay Kesharwani, Elivet Rodriguez, Mia A. Vertudez, Mina L. Motakhaveri, Terelan K. Le, Minh Kieu T. Tran, Matthew R. Cloyd, Cory T. Kornman, Aimee M. Phillips   +9 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Sulfate Reduction in Sediments Produces High Levels of Chromophoric Dissolved Organic Matter [PDF]

, 2017
Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been ...
Gonsior, Michael, Heyes, Andrew, Larsen, Randolph K., Luek, Jenna L., Thompson, Kaitlyn E.   +4 more
core   +2 more sources

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Recent Strides in the Transition Metal-Free Cross-Coupling of Haloacetylenes with Electron-Rich Heterocycles in Solid Media

Molecules, 2020
The publications covering new, transition metal-free cross-coupling reactions of pyrroles with electrophilic haloacetylenes in solid medium of metal oxides and salts to regioselectively afford 2-ethynylpyrroles are discussed.
Lyubov’ N. Sobenina, Boris A. Trofimov
doaj   +1 more source

Selenium‐Incorporated Polymerized Nonfullerene Acceptors/SWCNT Composites with Polymer‐Assisted n‐Doping for High‐Performance Organic Thermoelectrics

Advanced Functional Materials, EarlyView.
Selenium‐incorporated polymerized nonfullerene acceptor PCB2Se forms a strong supramolecular complex with SWCNTs, enabling a record‐high zT of 0.29. Sequential N‐DMBI doping, mediated through a polymer‐assisted electron‐transfer pathway, successfully converts the PCB2Se/SWCNT composite into an efficient n‐type material with an impressive power factor ...
Chi‐Chun Tseng, Che‐An Chou, Chi Chang, Li‐Lun Yeh, Chien‐Yi Ku, Jhih‐Min Lin, Shih‐Huang Tung, Cheng‐Liang Liu, Yen‐Ju Cheng   +8 more
wiley   +1 more source

Ultrasonic-assisted extraction and light-dependent antimicrobial activities of thiophenes from Tagetes erecta

Industrial Crops and Products
Marigold (Tagetes species) is rich in thiophenes and efficient extraction of thiophenes is vital for their activity evaluation and utilization. In this study, ultrasonic-assisted extraction (UAE) was used to extract thiophenes from Tagetes erecta and the
Yaqiong Qiu, Qichao Liu, Mingzhu Qiu, Yafang Shang, Shangrong Zhu, Fengru Liu, Shike She, Shaohua Yang, Xiangli Niu   +8 more
doaj   +1 more source

Thiophene-based donor–acceptor co-oligomers by copper-catalyzed 1,3-dipolar cycloaddition

Beilstein Journal of Organic Chemistry, 2012
Herein we present a three-component one-pot procedure to synthesize co-oligomers of a donor–acceptor–donor type, in which thiophene moieties work as donor and 1,2,3-triazoles as acceptor units.
Stefanie Potratz, Amaresh Mishra, Peter Bäuerle   +2 more
doaj   +1 more source

One-Pot Synthesis of 2-(Aryl/Alkyl)amino-3-cyanobenzobthiophenes and Their Hetero-Fused Analogues by Pd-Catalyzed Intramolecular Oxidative C�H Functionalization/Arylthiolation [PDF]

, 2017
We have developed a high-yielding synthesis for substituted 2-(aryl/alkyl)amino-3-cyanobenzobthiophenes and their hetero-fused analogues by using a palladium-catalyzed intramolecular oxidative Câ H functionalization/arylthiolation reaction of in situ ...
Acharya, A., Gautam, V., Hiriyakkanavar, I., Pasha, M.A., Saraiah, B.   +4 more
core   +1 more source