Results 41 to 50 of about 12,670 (192)

Dual Photochemistry of Benzimidazole

The Journal of Organic Chemistry, 2023
Monomers of benzimidazole trapped in an argon matrix at 15 K were characterized by vibrational spectroscopy and identified as 1H-tautomers exclusively. The photochemistry of matrix-isolated 1H-benzimidazole was induced by excitations with a frequency-tunable narrowband UV light and followed spectroscopically.
José P. L. Roque, Mário T. S. Rosado, Rui Fausto, Igor Reva   +3 more
openaire   +3 more sources

Imidazole as a parent π-conjugated backbone in charge-transfer chromophores

Beilstein Journal of Organic Chemistry, 2012
Research activities in the field of imidazole-derived push–pull systems featuring intramolecular charge transfer (ICT) are reviewed. Design, synthetic pathways, linear and nonlinear optical properties, electrochemistry, structure–property relationships ...
Jiří Kulhánek, Filip Bureš
doaj   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source

Desymmetrization of Malonic Monoesters and Malonic Acids via Enantioselective Catalytic C(sp3)─H Oxidation

Angewandte Chemie, EarlyView.
Manganese‐catalyzed enantioselective C(sp3)─H lactonization with hydrogen peroxide enables the direct desymmetrization of malonic monoesters and malonic acids, providing highly enantioenriched γ‐ and δ‐lactones (up to >99% ee) ABSTRACT Malonate derivatives are readily available starting materials widely employed in the synthesis of bioactive compounds.
Nikos Siakavaras, Arnau Call, Massimo Bietti, Miquel Costas   +3 more
wiley   +2 more sources

In Situ Synthesis of a Magnetic Graphene Platform for the Extraction of Benzimidazoles from Food Samples and Analysis by High-Performance Liquid Chromatography

Journal of Analytical Methods in Chemistry, 2017
A novel method was proposed for the determination of five benzimidazoles (oxfendazole, mebendazole, flubendazole, albendazole, and fenbendazole) using magnetic graphene (G-Fe3O4). G-Fe3O4 was synthesized via in situ chemical coprecipitation.
Qianchun Zhang, Yulan Liu, Xingyi Wang, Huimin Li, Junyu Chen   +4 more
doaj   +1 more source

Synthesis, Characterization and Thermal Analysis of Novel Methylene Bridged Bis-carbazole Based Bisbenzimidazoles

Hittite Journal of Science and Engineering, 2022
The synthesis of novel bis(3-carbazoly1)methane linked bis-benzimidazoles is described. Construction of symmetrical bis-benzimidazoles on the bis-carbazolylmethane scaffold was succeeded by condensation reaction of benzene-1,2-diamine derivatives with ...
Mehmet Fatih Saglam
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Proton‐conducting polymers based on benzimidazoles and sulfonated benzimidazoles

Journal of Polymer Science Part A: Polymer Chemistry, 2002
AbstractA sulfonated derivative of polybenzimidazole is reported, and its properties are analyzed in comparison with related polybenzimidazole proton‐conducting materials. Poly(2,5‐benzimidazole), poly(m‐phenylenebenzobisimidazole), and poly[m‐(5‐sulfo)‐phenylenebenzobisimidazole] were prepared by condensation of the corresponding monomers in ...
Asensio, Juan Antonio, Borrós, Salvador, Gómez-Romero, P.   +2 more
openaire   +2 more sources

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Identification of novel pyrazole and benzimidazole based derivatives as PBP2a inhibitors: Design, synthesis, and biological evaluation

Archives of Pharmaceutical Sciences Ain Shams University, 2019
The antibiotic resistance of methicillin-resistant Staphylococcus aureus (MRSA) is attributable to the expression of the high molecular mass transpeptidase enzyme, penicillin-binding protein 2a (PBP2a), an enzyme that catalyzes the cross-linking reaction
Menna-Allah W. Shalaby, Eman M.E. Dokla, Rabah A. T. Serya, Khaled A. M. Abouzid   +3 more
doaj   +1 more source