Results 121 to 130 of about 35,207 (244)

Multidimensional Engineering Enabling Rate‐Matched C−N Coupling for Efficient Organonitrogen Electrosynthesis

open access: yesEcoEnergy, EarlyView.
This review introduces rate matching as a unifying design principle for efficient electrochemical C−N coupling and highlights multidimensional engineering of catalysts, interfaces, and reactors to synchronize the generation of carbon‐ and nitrogen‐containing intermediates, balance their surface coverages, maximize C−N bond formation, and enable ...
Kaixing Cai   +4 more
wiley   +1 more source

Direct Conversion of Aryl Iodides Into Benzylamines by Aminomethylation: Reaction Scope, Mechanistic Studies, and Applications

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This study presents an efficient aminomethylation of aryl iodides with formamides for the synthesis of benzylamines using a reusable palladium catalyst at a loading of 65 mol ppm. The substrate scope is systematically evaluated, and mechanistic investigations provide insight into the reaction pathway and the origin of the observed catalytic efficiency.
Abhijit Sen   +4 more
wiley   +1 more source

Solvent-Controlled, Tunable Domino Reaction of 3‑Ylideneoxindoles with in Situ-Generated α‑Aryldiazomethanes: A Facile Access to 3‑Spirocyclopropyl-2-oxindole and Pyrazoloquinazolinone Scaffolds

open access: yesACS Omega, 2018
Gopathi Ramu   +5 more
doaj   +1 more source

Selective N‐Functionalization of Pyrazoles

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek   +2 more
wiley   +1 more source

Rethinking Environmental Impact Assessment for nature positive development

open access: yesFrontiers in Ecology and the Environment, EarlyView.
Achieving “nature positive” development within existing regulatory frameworks will be challenging. Halting and reversing biodiversity loss requires protection, restoration, and enhancement of ecosystems alongside a fundamental shift in how biodiversity is valued and quantifiable improvements are assessed.
Holly Kirk   +5 more
wiley   +1 more source

Agrochemicals and crop productivity losses: Agroquímicos

open access: yes
Objective: The aim of this research is to reflect briefly on the importance of the use of agrochemicals in the productivity of some crops according to their contribution to yield, and some implications of their agricultural consumption.
Valencia Botin, Alberto Julian   +3 more
core   +1 more source

Recent Paradigms in Nanomaterial‐Assisted Electrochemical (Bio) Sensing for Food Quality and Safety Analysis: A Critical Review

open access: yesFood Safety and Health, EarlyView.
ABSTRACT Rising global demand for safe and unadulterated foods has accelerated the need for rapid, low‐cost, and portable analytical technologies. Traditional laboratory methods, although accurate, are often labor‐intensive and unsuitable for decentralized, real‐time monitoring. In response, nanomaterial‐assisted electrochemical sensors have emerged as
Toleshi Teshome
wiley   +1 more source

Surfactants in agrochemicals / Tharwat F. Tadros.

open access: yes, 1995
Includes bibliographical references (pages 249-259) and index.x, 264 pages :Highlighting the physical chemistry of surfactant solutions, this authoritative, single-source reference/text details a fundamental method of selecting surfactants for ...
Tadros, Th. F. 12556
core  

Biosensors for Food Safety and Adulteration Monitoring: Applications, Smart Packaging Integration, and Pathways to Intelligent, Field‐Deployable Detection Systems

open access: yesFood Safety and Health, EarlyView.
Biosensors enable rapid, sensitive, and portable detection of pathogens, contaminants, allergens, and food adulteration. Integration with smart packaging, smartphones, IoT, and machine learning supports real‐time monitoring and intelligent decision‐making, whereas microfluidics, biodegradable materials, explainable AI, and blockchain offer pathways ...
Mohima Akther Any   +7 more
wiley   +1 more source

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