Crop losses caused by microbial infections are a significant global issue, especially in tropical regions. The development of novel antimicrobial agents, particularly antifungal agents, has been explored from various perspectives, including chemical synthesis. However, conventional approaches typically involve synthesizing new and potent compounds on a small scale (a few milligrams), making the scale-up of the reaction a major challenge. In this manuscript, we present a method for the synthesis of new and active (against ) benzofuranyl acetic acid amides. Our strategy allows us to synthesize the key precursor on the gram scale, enabling the production of sufficient quantities of other active compounds within short timeframes for conducting biological studies. All the reactions used in this manuscript are recognized by their industrial application.
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http://dx.doi.org/10.1039/d3ra04737g | DOI Listing |
ACS Catal
March 2025
Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States.
Herein, we report the reaction development and mechanistic studies of visible-light-driven Cu-catalyzed dechlorination of trichloroacetic acid for the highly selective formation of monochloroacetic acid. Visible-light-driven transition metal catalysis via an inner-sphere pathway features the dual roles of transition metal species in photoexcitation and substrate activation steps, and a detailed mechanistic understanding of their roles is crucial for the further development of light-driven catalysis. This catalytic method, which features environmentally desired ascorbic acid as the hydrogen atom source and water/ethanol as the solvent, can be further applied to the dehalogenation of a variety of halocarboxylic acids and amides.
View Article and Find Full Text PDFInt J Mol Sci
February 2025
Translational Medicine Laboratory, National Cancer Institute, S.S.A., Mexico City 14080, Mexico.
Gastric cancer is one of the most common forms of cancer worldwide. A growing number of studies have addressed the anti-proliferative effects of cannabinoids on several tumor cells. The molecular mechanisms underlying the anti-proliferative effects of the endogenous cannabinoid anandamide (AEA) on gastric tumor cell lines have yet to be characterized.
View Article and Find Full Text PDFPolymers (Basel)
February 2025
Institut für Technische und Makromolekulare Chemie, Universität Hamburg, 20146 Hamburg, Germany.
The effect of the presence of guar gum (0-0.75 wt%) in a thermo-responsive triple-network (TN) PVA/TA/PVA-MA-g-PNIPAAm hydrogel (PVA: polyvinyl alcohol; MA: methacrylate, PNIPAAm: poly-N-isopropyl acryl amide; TA: tannic acid) with respect to the structural, mechanical, and viscoelastic properties was mapped. A comprehensive analysis, using large-amplitude oscillatory shear (LAOS), SEM imaging, XRD, and mechanical analysis revealed that guar enhances hydrogel crystallinity (up to 30% at 0.
View Article and Find Full Text PDFNat Commun
March 2025
Institute of Organic Chemistry, Leibniz University Hannover, Hannover, Germany.
Amide synthases catalyze the formation of macrolactam rings from aniline-containing polyketide-derived seco-acids as found in the important class of ansamycin antibiotics. One of these amide synthases is the geldanamycin amide synthase GdmF, which we recombinantly expressed, purified and studied in detail both functionally as well as structurally. Here we show that purified GdmF catalyzes the amide formation using synthetically derived substrates.
View Article and Find Full Text PDFOrg Lett
March 2025
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.
Herein, an electron donor-acceptor complex (EDA)-enabled photoredox nickel-catalyzed coupling/controllable defluorination domino sequence has been successfully developed, providing an efficient route to a series of α-fluoroarylacetic esters and amides. This methodology accommodates a diverse array of commercially available aryl bromides and chlorodifluoroaryl carboxylic acid derivatives as suitable substrates. Preliminary mechanistic investigations suggest that the reaction is initiated by photoinduced EDA-enabled/nickel-catalyzed direct cross-electrophile coupling, with further defluorination proceeding through the generation of EDA complexes, facilitating a controllable reductive defluorination process.
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