Results 51 to 60 of about 20,875 (302)

Copper-Catalyzed Cascade Cyclization Reactions of Diazo Compounds with tert-Butyl Nitrite and Alkynes: One-Pot Synthesis of Isoxazoles.

open access: yesJournal of Organic Chemistry, 2019
A novel copper-catalyzed [3 + 2] cycloaddition reaction of alkynes with nitrile oxides generated in situ from the coupling reaction of copper carbene and nitroso radical has been developed.
Xue‐Di Wang   +5 more
semanticscholar   +1 more source

Magnetic Pinecone Biochar‐Activated Peroxymonosulfate for Efficient Sulfamethoxazole Degradation: Performance, Mechanism, and Toxicity Analysis

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study successfully prepared magnetic iron/cobalt codoped biochar catalyst (CFSBC) using a one‐step calcination method. The morphology and structure of the material were systematically characterized using SEM, XRD, FTIR, TEM, BET, Raman, VSM, and XPS techniques. The effects of key parameters such as catalyst dosage, peroxymonosulfate (PMS)
Jianhua Ni   +3 more
wiley   +1 more source

5-(Benzoyloxymethyl)isoxazole-3-carboxylic Acid Ethyl Ester

open access: yesMolbank
We describe here the palladium hydrogenation of ethyl 5-(benzoyloxymethyl)isoxazole-3-carboxylate. The presence of two reducible sites in the molecule, namely the benzylic-like position and the isoxazole N–O bond, creates a possible competition.
Cosimo Antonini   +2 more
doaj   +1 more source

Synthesis of highly substituted allenylsilanes by alkylidenation of silylketenes [PDF]

open access: yes, 2005
BACKGROUND: Allenylsilanes are useful intermediates in organic synthesis. An attractive, convergent but little used approach for their synthesis is the alkylidenation of stable silylketenes.
Ducept, P.C., Marsden, S.P.
core   +3 more sources

The Relationship Between Aldose Reductase and Isoxazole Derivatives: An In Vitro and In Silico Approach to Its Correlation With Diabetic Conditions

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Diabetes mellitus (DM), which can result in a number of problems such as cataracts, neuropathy, retinopathy, nephropathy, and several cardiovascular illnesses, continues to be a growing issue despite major advancements in treatment approaches.
Ahmet Esat Göner, Hatice Esra Duran
wiley   +1 more source

3-Benzoylisoxazolines by 1,3-Dipolar Cycloaddition: Chloramine-T-Catalyzed Condensation of α-Nitroketones with Dipolarophiles

open access: yesMolecules, 2021
In this study, 3-benzoylisoxazolines were synthesized by reacting alkenes with various α-nitroketones using chloramine-T as the base. The scope of α-nitroketones and alkenes is extensive, including different alkenes and alkynes to form various ...
Xinhui Pan   +8 more
doaj   +1 more source

Deep Eutectic Solvents: The Organic Reaction Medium of the Century [PDF]

open access: yes, 2016
This microreview summarizes the use of deep eutectic solvents (DESs) and related melts in organic synthesis. Solvents of this type combine the great advantages of other proposed environmentally benign alternative solvents, such as low toxicity, high ...
Abbott   +192 more
core   +2 more sources

Demystifying fungal systematics: A gateway to fungal literacy and societal/ecological relevance through familiar species

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Fungal systematics can feel overwhelming given the vast species diversity within this kingdom, with numerous subgroups at every taxonomic rank. This often creates a disconnect between the undertsnidng of fungal taxonomic diversity and their societal relevance.
Anna Vaiana   +4 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Tolerância de híbridos de milho ao herbicida isoxaflutole Tolerance of corn hybrids to isoxaflutole

open access: yesPlanta Daninha, 2008
Objetivou-se com este trabalho avaliar a tolerância de híbridos de milho ao isoxaflutole e relacionar estudos de seletividade desse herbicida conduzidos em casa de vegetação com estudos desenvolvidos em campo.
S.D. Cavalieri   +5 more
doaj   +1 more source

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