AI Article Synopsis
- A new method was created to combine alkynylphenols with epoxides and elemental sulfur or selenium using a copper catalyst, resulting in a unique 3-chalcogen-benzofuran structure.
- This process operates as a domino reaction, meaning it occurs in one go without needing to isolate or purify intermediates.
- The method works well at room temperature, allowing for various sensitive functional groups and producing good yields of chalcogenation derivatives.
Article Abstract
A novel copper-catalyzed cyclization/chalcogenation of -alkynylphenols with epoxides and elemental S/Se was developed for the synthesis of a 3-chalcogen-benzofuran architecture in a domino process with no intermediate isolation or purification. Various sensitive functional groups were compatible at room temperature and furnished chalcogenation derivatives in moderate to good yields.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.joc.4c00077 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Fabricating High-Efficiency Sb(S,Se) Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering.
Small
December 2024
Institute of Micronano Devices & Solar Cells, College of Physics & Information Engineering, Fuzhou University, Fuzhou, 350108, Peoples Republic of China.
Antimony selenosulfide (Sb(S,Se)) solar cells have achieved an efficiency of over 10.0%. However, the uncontrollable hydrothermal process makes preparing high-quality Sb(S,Se) thin films a bottleneck for efficient Sb(S,Se) solar cell.
View Article and Find Full Text PDFTwo-Electron Oxidative Atom and Group Transfer Reactions at a Well-Defined Uranium(II) Center.
Angew Chem Int Ed Engl
November 2024
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
The multi-electron redox chemistry of uranium(II) compounds remains largely unexplored. Herein, we report a series of two-electron oxidative atom and group transfer reactions at a well-defined uranium(II) center. The reactions of uranium(II) complexes [M][(TPBN)U] (M=K(2,2,2-cryptand) and K(18-crown-6)(THF)) with pyridine-N-oxide or nitrosobenzene, elemental sulfur/selenium or triphenylphosphine sulfide/selenide, and ditellurium salt led to the isolation of uranium(IV) terminal oxo and chalcogenido complexes [M][(TPBN)UX] (X=O, S, Se, Te).
View Article and Find Full Text PDFSynthesis, XRD and DFT studies on Pb[ChCN] (Ch = O, S, Se) and Pb[SeCN][OH].
Dalton Trans
December 2024
Philipps-Universität Marburg, Hans-Meerwein Straße 4, Marburg, DE-35032, Germany.
We report on the synthesis of Pb[ChCN] (Ch = O, S, Se) and Pb[SeCN][OH] and their hitherto unknown crystal structures. All products were fully characterized by single-crystal and powder X-ray diffraction. Bulk analysis was performed by Rietveld refinement, elemental analysis, differential scanning calorimetry-thermogravimetric analysis (DSC-TGA), and solid-state Raman spectroscopy.
View Article and Find Full Text PDFWater-soluble neutral octahedral chalcogenide tungsten and molybdenum {MQ} clusters with P(CHCONH) ligand.
J Inorg Biochem
January 2025
Nikolaev Institute of Inorganic Chemistry SB RAS 3 acad. Lavrentiev ave., 630090 Novosibirsk, Russia.
Developing the chemistry of octahedral chalcogenide molybdenum and tungsten cluster complexes in the context of applications in biology and medicine, in this work a series of water-soluble neutral cluster complexes [{MQ}(P(CHCONH))] (M = Mo, W; Q = S, Se) have been obtained by simultaneous replacement of inner and terminal halide ligands in [{MI}I] with chalcogenide and organic phosphine ligands and characterized by single-crystal X-ray diffraction analysis, H and P NMR spectroscopies, elemental analysis, and UV-vis spectroscopy. The amide groups of the organic ligands, on the one hand, contribute to the solubility of the resulting clusters in water and, on the other hand, are able to form an extensive network of hydrogen bonds, leading to the crystallization of the complexes from aqueous solutions. Despite this fact, the complexes have sufficient solubility and stability in aqueous solutions, which made it possible to demonstrate their low cytotoxicity on Hep-2 cells (IC were not reached even at concentration up to 4 mM).
View Article and Find Full Text PDFHalf-Sandwich Cerium and Lanthanum Dialkyl Complexes: Synthesis, Structure, and Reactivity Studies.
Inorg Chem
November 2024
Key Laboratory of Applied Chemistry of Chongqing Municipality, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
Cerium and lanthanum dialkyl complexes [η-1,2,4-(MeC)CH]Ln(CHCH--NMe) (Ln = Ce and La ), supported by a tri-butylcyclopentadienyl ligand, have been successfully synthesized. Studies demonstrate that these complexes possess diverse reactivity toward various small molecules. For example, the reaction of complexes and with diphenyl dichalcogenides PhEEPh (E = S, Se) results in the formation of lanthanide thiolates [(η-1,2,4-(MeC)CH)Ln(SPh)(μ-SPh)] (Ln = Ce and La ) and selenolates [(η-1,2,4-(MeC)CH)Ln(SePh)(μ-SePh)] (Ln = Ce and La ), concomitantly releasing PhE(CHCH--NMe).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!