Visible-light-driven photocyclization reaction: photocatalyst-free mediated intramolecular N–N coupling for the synthesis of 2H-indazole-3-carboxamides from aryl azides

Organic Chemistry Frontiers, Год журнала: 2021, Номер 8(19), С. 5296 - 5302

Опубликована: Янв. 1, 2021

A visible-light-driven photocyclization reaction of aryl azides to access 2 H -indazole-3-carboxamides in moderate excellent yields has been realized efficiently under photocatalyst-free and external additive-free conditions.

Язык: Английский

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The synthesis and structure of an amazing and stable carbonized material Cu-PC@OFM and its catalytic applications in water with mechanism explorations

New Journal of Chemistry, Год журнала: 2021, Номер 45(21), С. 9614 - 9620

Опубликована: Янв. 1, 2021

An amazing and stable carbonized octahedral frame material Cu-PC@OFM was synthesized characterized through HRTEM, SEM, XRD, XPS, Raman spectroscopy nitrogen adsorption/desorption analysis.

Язык: Английский

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A new type of heterogeneous catalysis strategy for organic reactions: Ugi-3CR catalyzed by highly stable MOFs with exposed carboxyl groups

Organic Chemistry Frontiers, Год журнала: 2022, Номер 9(22), С. 6179 - 6186

Опубликована: Янв. 1, 2022

A mild and highly efficient Ugi-3CR using a novel Cu-COOH@MOF-6 as the catalyst has been developed, which provides facile access to α-amino amides. The recycling test XRD images showed that catalytic system good stability recyclability.

Язык: Английский

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Highly Stable Univalent Copper of a Cu@Al/SBA‐15 Nanocomposite Catalyzes the Synthesis of Fluorescent Aminobenzotriazoles Derivatives

Chemistry - A European Journal, Год журнала: 2021, Номер 28(3)

Опубликована: Ноя. 29, 2021

With the development of green chemistry, it is still a challenge to maintain unstable valence state metal in heterogeneous catalysts and realize new catalytic synthesis methods. In this paper, reported that an univalent copper nanocomposite (Cu@Al/SBA-15) can efficiently catalyze formation novel amino-containing benzotriazoles with great fluorescence properties synthetic strategy. Subsequently, its application further verified by acylation reaction produce series derivatives high yield. It worth noting Cu@Al/SBA-15 nanocomposites not only enable completed yield short time, but also be recycled many times without significant reduction activity, leaching aluminum species system negligible. Finally, detailed feasible mechanism provided.

Язык: Английский

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Study on the Bimetallic Synergistic Effect of Cu/Al@SBA-15 Nanocomposite on Dehydrogenation Coupling Strategy

Catalysis Letters, Год журнала: 2022, Номер 152(12), С. 3704 - 3715

Опубликована: Фев. 10, 2022

Язык: Английский

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Synthesis and Discovery of Schiff Base Bearing Furopyrimidinone for Selective Recognition of Zn2+ and its Applications in Cell Imaging and Detection of Cu2+

Frontiers in Chemistry, Год журнала: 2021, Номер 9

Опубликована: Ноя. 29, 2021

A simplefuro [2,3-d]pyrimidinone-based Schiff base FPS was synthesized via aza-Wittig reaction and structure elucidation carried out by spectroscopic studies FT-IR, 1H NMR, 13C NMR mass spectrometry. showed weak fluorescence emission in methanol the selectivity of to different metal ions (Mn2+, Ca2+, Fe2+, Fe3+, Mg2+, Al3+, Ba2+, Ag+, Co2+, Na+, K+, Cu2+, Zn2+, Pb2+, Bi3+) were studied absorption titration. The results show that has selective sensing behavior for Zn2+ limit detection (LOD) calculated be 1.19 × 10-8 mol/L. Moreover, FPS-Zn2+ acts as a based highly sensitive new chemosensor Cu2+ LOD 2.25 10-7 In accordance with theoretical calculations, we suspected binding mechanisms assigned cooperative interaction Zn2+(Cu2+)-N.

Язык: Английский

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Solvent-involved synthesis of pyrrolidin-5-one-2-carboxamides via a sequential Ugi/olefination reaction

Organic Chemistry Frontiers, Год журнала: 2024, Номер 11(10), С. 2780 - 2785

Опубликована: Янв. 1, 2024

An unprecedented multi-component reaction with solvent participation and a novel conversion of sulfur ylides was developed via Ugi/olefination to construct pyrrolidin-5-one-2-carboxamides.

Язык: Английский

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