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Nickel-Catalyzed Reductive Cyanation of Aryl Halides and Epoxides with Cyanogen Bromide.
Molecules
December 2024
School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
Nitriles are valuable compounds because they have widespread applications in organic chemistry. This report details the nickel-catalyzed reductive cyanation of aryl halides and epoxides with cyanogen bromide for the synthesis of nitriles. This robust protocol underscores the practicality of using a commercially available and cost-effective cyanation reagent.
View Article and Find Full Text PDFMembrane-Bound Bisindolyl-Based Chromogenic Probes: Analysis of Cyanogenic Glycosides in Agricultural Crops for Possible Remediation.
ACS Appl Bio Mater
January 2025
Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad, Telangana 500078, India.
Cyanogenic glycosides are plant-derived, nitrogen-containing secondary metabolites that release toxic cyanide ions upon hydrolysis by glycosidic enzymes. Therefore, consuming food items enriched with such compounds without proper remediation can cause acute cyanide intoxication. Thus, in this work, we utilize cyanide-responsive oxidized bisindole-based chromogenic probes to detect cyanogenic glycosides, such as amygdalin and linamarin (LOD: 0.
View Article and Find Full Text PDFMetabolomics and proteomics analyses of Chrysanthemi Flos: a mechanism study of changes in proteins and metabolites by processing methods.
Chin Med
November 2024
School of Pharmacy, Anhui University of Chinese Medicine, 350 Shaoquan Rd, Hefei, 230012, People's Republic of China.
Background: Chrysanthemi Flos is a traditional Chinese medicine with a long history of medicinal use. Prior research suggests that the intrinsic composition of Chrysanthemi Flos is affected by shade-drying and oven-drying methods. Nevertheless, the effects of these methods on the proteins and metabolites of Chrysanthemi Flos have not been extensively studied.
View Article and Find Full Text PDFVisible-Light-Induced Rapid Elimination of Antibiotic Resistance Contaminations Using Graphitic Carbon Nitride Tailored with Carrier Confinement Domains.
Adv Mater
January 2025
School of Environment, Northeast Normal University, Changchun, Jilin, 130117, China.
Solar water disinfection facilitated by photocatalyst has been considered a viable point-of-use (POU) method for mitigating antibiotic resistance contaminations at the household or community levels. Here, density functional theory calculations are used to guide the fabrication of a carrier confinement domains (CCD)-decorated graphitic carbon nitride (CN) photocatalyst. The CCD integration effectively disrupts the electron distribution symmetry of CN, amplifies its local electron density, and facilitates the formation of a long-range ordered structure, thereby enhancing charge separation efficiency.
View Article and Find Full Text PDFThe polyvalent sequestration ability of an economically important beetle.
Curr Biol
December 2024
University of Neuchâtel, Institute of Biology, FARCE Laboratory, 2000 Neuchâtel, Switzerland. Electronic address:
Many specialized herbivorous insects sequester single classes of toxic secondary metabolites from their host plants as protection against natural enemies. If and how herbivores can use multiple classes of plant toxins across the large chemical diversity of plants for self-protection is unknown. We show that the polyphagous adults of the beetle Diabrotica virgifera are capable of selectively accumulating benzoxazinoids, cucurbitacins, and glucosinolates but not cyanogenic glycosides.
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