In this research and in the line of our researches on the use of nano-substrates modified with ionic liquid in organic reactions, an efficient and green method for the one-pot three-component synthesis of pyrimido[1,2-]benzimidazole and 1-(benzothiazolylamino)methyl-2-naphthol derivatives is reported using a new nanoporous catalyst formulated as ZnO@SOH@Tropine. Further analysis of the catalyst for its characterization has been performed using thermal gravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS) and Fourier-transform infrared spectroscopy (FT-IR). The present approach creates a variety of biologically active heterocyclic compounds with excellent yields and short reaction times. Among the other advantages of the current method are: ease of operation, clean reaction profiles and ease of separation. Also, this catalyst can be reused five times without loss of its catalytic activity.
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http://dx.doi.org/10.1039/d3ra08960f | DOI Listing |
Food Chem
December 2024
College of Food Science and Engineering, Ningxia University, Yinchuan, China. Electronic address:
This study presents a novel method for the efficient preparation of peptide-based films through microwave-assisted Lewis acid catalysis (MALC) of buckwheat globulin (BG). The MALC process efficiently degraded BG into small molecular peptides (1.6-1.
View Article and Find Full Text PDFDalton Trans
January 2025
College of Life Sciences, School of Chemical Engineering, Key Laboratory of Green Catalysis of Jiangxi Education Institutes, Jiangxi Normal University, Nanchang 330022, China.
The photocatalytic conversion of CO and HO into useful chemicals or fuels over semiconductor photocatalysts is regarded as a promising technology to address the problems of global warming and energy exhaustion. However, inefficient photo-absorption and slow charge dynamics limit the CO photoreduction efficiency. Here, a ternary heterojunction photocatalyst, CuCl(OH)/In/InO (Cu H IO), with an intimate interface is obtained a hydrogen chemical reduction approach followed by hydrolysis reaction, where In species can be produced on the surface of InO from the hydrogen chemical reaction with a calcining temperature of over 500 °C.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
Herein, we present an efficient and practical method for multicomponent carbo-heterofunctionalization of alkenes radical-polar crossover photoredox catalysis. Employing geminal bromonitroalkanes as redox-active reagents with a wide range of O-centered nucleophiles allows rapid access to various 1,3-difunctionalized nitro compounds, including β-nitro ketones, 1,3-nitro alcohols, 1,3-nitro ethers as well as cyclic molecules.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
School of Physical Science and Technology, Shanghai Key Laboratory of High-Resolution Electron Microscopy, State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China.
Covalent organic frameworks (COFs) hold promise in heterogeneous metal catalysis benefiting from their robust, crystalline, and porous structures. However, synthetic challenges persist in prolonged crystallization times, limited metal loading, and uncertain coordination environments. Here, we present the rapid crystallization and versatile metalation of new acetylhydrazone-linked COFs (AH-COFs) by condensation of ketone and hydrazide components, featuring full conversion within 30 min under open-air and mild conditions.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Institut de Química Computacional i Catàlisi (IQCC), Universitat de Girona, Maria Aurèlia Capmany 69, 17003 Girona, Spain.
Discrimination of enantiomeric substrate molecules is one of the fundamental properties of biological hosts. Replicating enantioselective molecular recognition with synthetic receptors is a topic of interest with implications in diverse applications such as bioinspired enantioselective catalysis, enantiomer separation, or sensing. In this review, five different systems reported in the literature are discussed, and their performance and versatility are analyzed.
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