Results 71 to 80 of about 21,034 (299)
Tetrahedron Green ChemThe electrosynthesis of benzimidazole-fused quinazolinones from N-substituted o-phenylenediamines and isothiocyanates via a cascade addition-desulfurization-cyclization process was introduced. This electrochemical approach utilizes the mild and efficient
Khuyen Thu Nguyen +2 more
doaj +1 more source
A Green, Scalable, One-Minute Synthesis of Benzimidazoles [PDF]
, 2020 Herein is reported a substantially improved synthesis of 2-substituted benzimidazoles by condensation of 1,2-diaminoarenes and aldehydes using methanol as the reaction medium.
Elumalai, Vijayaragavan, Hansen, Jørn H
core +1 more source
Advanced Science, EarlyView.Molecular diode‐based covalent organic frameworks (COFs) enable pH‐responsive current rectification, dynamically reversing electron flow to toggle photocatalytic hydrogen evolution activity between acidic and alkaline environments. ABSTRACT Donor–acceptor type covalent organic frameworks (D–A COFs) have emerged as a promising class of photocatalytic ...
Tianyi Liu +7 more
wiley +1 more source
Catalyst-free synthesis of substituted benzimidazoles and benzothiazoles in a sustainable solvent
Tetrahedron Green ChemA catalyst-free synthesis of various 2-alkyl or aryl-substituted benzothiazoles and benzimidazoles has been developed at room temperature by simply combining alkyl or arylaldehydes with ortho-phenylenediamines and 2-aminothiophenols, respectively.
R. Bernadett Vlocskó +4 more
doaj +1 more source
Imparting improvements in electrochemical sensors: evaluation of different carbon blacks that give rise to significant improvement in the performance of electroanalytical sensing platforms [PDF]
, 2015 Three different carbon black materials have been evaluated as a potential modifier, however, only one demonstrated an improvement in the electrochemical properties.
Banks, Craig E. +5 more
core +2 more sources
Advanced Science, EarlyView.This review comprehensively outlines how Ti3C2Tx MXene transforms carbon fiber from a structural component into a multifunctional platform. We systematically detail cutting‐edge modification strategies and showcase exceptional performance in EMI shielding, energy storage, smart sensing, and beyond.
Hongshuo Cao +6 more
wiley +1 more source
Structure-mechanism-based engineering of chemical regulators targeting distinct pathological factors in Alzheimer???s disease [PDF]
, 2016 The absence of effective therapeutics against Alzheimer???s disease (AD) is a result of the limited understanding of its multifaceted aetiology. Because of the lack of chemical tools to identify pathological factors, investigations into AD pathogenesis ...
Beck, Michael +16 more
core +2 more sources
Contact Dermatitis, 2011 Adverse reactions to permanent hair dyes are frequent, and primarily result from sensitization to p-phenylenediamine (PPD).To investigate the degree of cross-reactivity to a chemically similar dye, hydroxyethyl-p-phenylenediamine sulfate (HPPS), and whether this might be a dyeing alternative for patients who are sensitive to PPD.HPPS was patch tested ...
Frosch, Peter J. +2 more
openaire +3 more sources
Advanced Electronic Materials, EarlyView.The electrochemical doping of redox homo‐ and copolymers containing triphenylamine (TPA) as redox‐active units is reported. Electrochemical crosslinking leads to films with tetraphenylbenzidine (TPB) crosslinking units. Advanced electrogravimetric tools are applied to get insights into their mixed ionic‐electronic conducting characteristics: anion ...
Claudia Malacrida +5 more
wiley +1 more source
Green Synthesis and CatalysisC(sp2)-H amination represents an attractive approach for the synthesis of enamines, which is intrinsically associated with the challenge of controlling of stereochemistry and primarily relying on transition-metal catalysis.
Dangui Wang +9 more
doaj +1 more source