Results 51 to 60 of about 239 (169)

Melamine Trisulfonic Acid as a Highly Efficient and Reusable Catalyst for the Synthesis of β-Acetamido Ketones

E-Journal of Chemistry, 2012
A highly efficient protocol for the one-pot multi-component condensation of acetophenones with aromatic aldehydes, acetonitrile and acetyl chloride in the presence of melamine trisulfonic acid (MTSA) as a highly efficient and recyclable sulfonic acid ...
Abdolkarim Zare
doaj   +1 more source

Chemoselective Aldehyde and Imine Reduction by a Macrocyclic Triazole–Borane Complex Triggered by a Non‐innocent Proton–Hydride Interaction

European Journal of Organic Chemistry, EarlyView.
This work describes the study on a new recyclable reagent, based on a macrocyclic triazole–borane complex. It showed high chemoselectivity for aldehyde reduction and reductive amination over ketones. This selectivity is driven by a noncovalent hydride–proton interaction that stabilizes the transition state for aldehydes but is sterically inhibited in ...
Luca Di Marino, Artur Brotons Rufes, Rosaria Schettini, Giorgio Della Sala, Francesco De Riccardis, Chiara Costabile, Irene Izzo   +6 more
wiley   +1 more source

Sustainable Pd‐Catalyzed Aminations “on Dirty Water”

Angewandte Chemie, Volume 138, Issue 34, 17 August 2026.
Aminations, done safely yet neat, and therefore, quickly, using low levels of Pd, in “dirty water” that must contain 30% KOH; not NaOH, and not at 5%,10%, 20%, 40%, or 50% KOH. Moreover, no base sensitivity of functional groups! Very cool. Thank you, Nature.
Erfan Oftadeh, Marco Ortiz, Kylee Dismuke Rodriguez, Jonathan Yang, Bruce H. Lipshutz   +4 more
wiley   +2 more sources

APPLICATION OF SULFONIC ACID FUNCTIONALIZED NANOPOROUS SILICA (SBA-Pr-SO3H) FOR THE PREPARATION OF 4,6-DIARYLPYRIMIDIN-2(1H)-ONES

Química Nova, 2015
In this work, we report the Biginelli-type reaction between various aldehydes, acetophenones and urea systems in the presence of sulfonic acid functionalized silica (SBA-Pr-SO3H) under solvent-free conditions, which led to 4,6-diarylpyrimidin-2(1H)-ones ...
Ghodsi Mohammadi Ziarani, Masoumeh Azizi, Parvin Hajiabbasi, Alireza Badiei   +3 more
doaj   +1 more source

Beyond a dual role: how Purpureocillium lilacinum reprograms citrus metabolism for integrated biocontrol and growth promotion

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Plants harbor complex microbial communities that are fundamental to their health and productivity. Among them, endophytic fungi such as Purpureocillium lilacinum establish mutualistic associations, offering dual benefits as plant growth promoters and biocontrol agents.
Sana Bouzembila, Kamel Charaabi, Haytham Hamden, Salma Fadhel, Nesrine Tanfouri, Meriem Msaad Guerfali   +5 more
wiley   +1 more source

Natural-derived acetophenones: chemistry and pharmacological activities

Natural Products and Bioprospecting
Acetophenones are naturally occurring phenolic compounds which have found in over 24 plant families and also fungi strains. They are exist in both free or glycosides form in nature.
Hamid Ahmadpourmir, Homayoun Attar, Javad Asili, Vahid Soheili, Seyedeh Faezeh Taghizadeh, Abolfazl Shakeri   +5 more
doaj   +1 more source

Synthesis and Biological Evaluation of Some Novel 1, 3, 5-Trisubstituted Pyrazolines

E-Journal of Chemistry, 2010
A new series of chalcones (3a-j) were synthesized by condensation of simple aldehydes with substituted acetophenones in presence of alkali. The resulted chalcones upon cyclization in presence of glacial acetic acid with isoniazid (INH) will yields the ...
B. C. Revanasiddappa, R. Nagendra Rao, E. V. S. Subrahmanyam, D. Satyanarayana   +3 more
doaj   +1 more source

Host plant‐specific volatiles of Beauveria bassiana‐colonized plants initiate trophic plant–aphid–predator cascades

Pest Management Science, EarlyView.
Endophytic colonization of melon plants by B. bassiana modifies the crop volatile profiles in a genotype‐dependent manner. A predator choice is biased toward endophytically colonized plants infested with aphids revealing a guardian within effect of the fungus of great potential in integrated pest management.
María Cuenca‐Medina, Raquel Rodríguez‐Solana, José Manuel Moreno‐Rojas, Rafael Alcalá‐Herrera, Enrique Quesada‐Moraga, Natalia González‐Mas   +5 more
wiley   +1 more source

Synthesis and Antimicrobial Activity of Some Chalcone Derivatives

E-Journal of Chemistry, 2008
In an effort to develop antimicrobial agents, a series of chalcones were prepared by Claisen-Schmidt condensation of appropriate acetophenones with appropriate aromatic aldehydes in the presence of aqueous solution of potassium hydroxide and ethanol at ...
Y. Rajendra Prasad, A. Lakshmana Rao, R. Rambabu   +2 more
doaj   +1 more source

Iloperidone treatment mitigates the Juvenile Huntington's Disease phenotype possibly via Sigma‐1 Receptor Modulation

The FEBS Journal, EarlyView.
We investigated the potential of iloperidone as an activator of Sigma‐1 receptor (S1R) neuroprotective function in juvenile Huntington's disease (jHD). We tested iloperidone on cortical neurons differentiated from patient‐derived iPSCs, demonstrating that it acts as a S1R agonist, decreasing apoptosis, huntingtin aggregation, and oxidative stress ...
Ersilia Fornetti, Gaia Galluzzi, Mario Frezzini, Cécile Exertier, Vittorio Brufani, Gianni Colotti, Giancarlo Ruocco, Jessica Rosati, Angelo Luigi Vescovi, Daniele Narzi, Ilaria Genovese, Andrea Ilari   +11 more
wiley   +1 more source