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Herein, we present the iron-catalyzed oxidative cyclization of alcohol/methyl arene with 2-amino styrene to synthesize polysubstituted quinoline. Low-oxidation level substrates such as alcohols and methyl arenes are converted to aldehydes in the presence of an iron catalyst and di--butyl peroxide. Then, the quinoline scaffold is synthesized through imine condensation/radical cyclization/oxidative aromatization. Our protocol showed a broad substrate scope, and various functionalization and fluorescence applications of quinoline products demonstrated its synthetic ability.
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http://dx.doi.org/10.1021/acs.joc.3c00095 | DOI Listing |
Life Sci
September 2025
Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan, 333031, India. Electronic address:
Cardiorenal syndrome (CRS) is a bidirectional relationship shared between the heart and kidneys, both in physiological and pathophysiological perspectives. The metabolic, hemodynamic, and neurohormonal alterations between the heart and kidneys drive this dual-organ damage and are responsible for one of the highest medical concerns around the globe. From a pathophysiological perspective, activation of the renin-angiotensin system, persistent inflammation, oxidative stress, and reactive fibrosis are accountable for the damage to the heart and kidneys.
View Article and Find Full Text PDFOrg Biomol Chem
September 2025
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
A continuous-flow synthesis of sulfoxides from sulfides was achieved oxidation with hydrogen peroxide (HO) in the presence of the catalyst generated by simply packing a reactor column with a mixture of iron(III) chloride (FeCl) and activated carbon followed by the pre-activation step in which an HO-acetonitrile solution was passed into the column. This activation step appeared to convert FeCl to iron oxide species, thereby enhancing catalytic efficiency. Sulfoxides were continuously produced in >90% yield for up to 150 h.
View Article and Find Full Text PDFRen Fail
December 2025
Department of Kidney Transplantation, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Ferroptosis represents a distinctive mechanism of cell death, differing from necroptosis, necrosis, and apoptosis. It is triggered by the accumulation of lipid peroxides, driven by iron-catalyzed reactions. This oxidative damage is essential for triggering the ferroptotic pathway.
View Article and Find Full Text PDFSynlett
August 2025
Department of Chemistry, Brandeis University, 415 South Street, Waltham MA, 02453, United States.
This account highlights an iron-catalyzed exclusively 1,2--selective glycosylation method for aminoglycoside synthesis. This selective nitrogen atom transfer reaction is effective for a broad range of glycosyl donors and acceptors, and it can be operated in a reiterative fashion and scaled up to the multi-gram scale. Mechanistic studies revealed a unique yet generally applicable glycosylation mechanism in which the iron catalyst activates a glycosyl acceptor and an oxidant when it facilitates the cooperative atom transfer of both moieties to a glycosyl donor in an exclusively -selective manner.
View Article and Find Full Text PDFDalton Trans
September 2025
Univ. Rennes, CNRS, ISCR UMR 6226, F35000 Rennes, France.
We have developed original blue-light promoted iron-catalyzed reactions of activated alkynes with secondary phosphine oxides in the presence of -butylhydroperoxide under argon at room temperature. Depending on the nature of the iron precursors, benzo[]phosphole oxides were obtained using Fe(NO) in methanol and 9-phenyltribenzo[,,]phosphindole 9-oxide derivatives utilizing Fe(OTf) in acetic acid. Control experiments revealed that radical processes are involved, permitting the proposal of a reasonable mechanism.
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