A strategy for synthesizing the highly oxidized bicyclo[3.2.1]octane CD rings of aconitine is reported. The key features of the synthesis include a ring-closing metathesis to form the C-ring as well as the application of a ruthenium-catalysed enyne cycloisomerization to assemble the bridged CD ring system of aconitine.
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http://dx.doi.org/10.1039/c8cc06819d | DOI Listing |
Chem Commun (Camb)
January 2025
Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
The visible-light-driven O evolution on oxychloride photocatalysts, such as BiNbOCl, was significantly enhanced by stirring in an aqueous solution containing IrCl in the dark. Various characterizations indicated that highly dispersed IrOHCl-like species spontaneously formed on the oxychloride surface, serving as effective and stable cocatalysts for enhancing O evolution.
View Article and Find Full Text PDFChem Asian J
January 2025
Rheinisch-Westfalische Technische Hochschule Aachen, Organic Chemistry, Landoltw, 52074, Aachen, GERMANY.
Highly reactive oxygen and nitrogen species (ROS/RNS) play crucial roles in various pathological conditions. Among them, hypochlorous ion (OCl⁻), a potent ROS, is associated in numerous oxidative stress-related disorders. Elevated levels of OCl⁻ are thus recognized as a biomarker for diagnosing inflammatory conditions.
View Article and Find Full Text PDFCrit Rev Biochem Mol Biol
January 2025
Department of Chemistry, Emory University, Atlanta, GA, USA.
Mononuclear non-heme iron enzymes catalyze a wide array of important oxidative transformations. They are correspondingly diverse in both structure and mechanism. Despite significant evolutionary distance, it is becoming increasingly apparent that these enzymes nonetheless illustrate a compelling case of mechanistic convergence the formation of peroxo species bridging metal and substrate.
View Article and Find Full Text PDFBiofactors
January 2025
Natural Products and Analytical Chemistry Laboratory, MIGAL - Galilee Research Institute, Kiryat Shemona, Israel.
Atherosclerosis is a major cause of morbidity and mortality worldwide; in Israel, ischemic heart disease is the second leading cause of death for both genders aged 45 and above. Atherosclerosis involves stiffening of the arteries due to the accumulation of lipids and oxidized lipids on the blood vessel walls, triggering the development of artery plaque. Coronary artery disease (CAD) is the most common manifestation of atherosclerosis.
View Article and Find Full Text PDFLangmuir
January 2025
Key Laboratory of Thorium Energy, Chinese Academy of Science Shanghai Institute of Applied Physics, Shanghai 201800, China.
Hydrogen evolution from water, catalyzed by solar energy, is a promising yet challenging endeavor. Small-sized catalysts usually exhibit high utilization and high performance in the hydrogen evolution field. However, the high surface energy tends to make them aggregate.
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