Copper ferrite nanoparticles: an efficient catalyst for the one-pot four-component synthesis of pyrano[2,3-c] pyrazole derivatives

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

An efficient CuFe₂O₄ nonocatalyzed was synthesized by using triton X-100 as a surfactant in water. The catalyst characterized FTIR, XRD, EDX, SEM and TEM techniques. nanocatalyst successfully pyrano[2,3-c] pyrazoles derivatives through one-pot four-component condensation of aromatic aldehydes, malononitrile, ethyl acetoacetate hydrazine hydrate the presence catalytic amount an inexpensive nanocatalyst. yield studied various reaction parameters such catalyst, type solvent, condition time. This multicomponent is simple, reduces toxicity, has short time high product yield. All were IR, ¹H NMR, and ¹³C NMR analysis. Additionally, reusable for up to four runs.

Language: Английский

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Recent Advances in Catalytic Approaches for Pyrano[2,3‐c]Pyrazole Synthesis: Green and Sustainable Perspectives

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(12)

Published: March 1, 2025

Abstract This review provides a detailed look at the methods used to create pyrano[2,3‐c]pyrazole derivatives over past ten years, with focus on various catalytic techniques. The highlights progress in green chemistry, showing how catalysts such as homogeneous, heterogeneous, and nanoparticle types have been used. It also discusses new approaches like microwave‐assisted catalyst‐free synthesis. evaluates effectiveness of different based reaction efficiency, yield, sustainability. Furthermore, it explores eco‐friendly options bio‐catalysts ionic liquid catalysts, which offer scalable environmentally‐friendly for producing these important compounds. Pyrano[2,3‐c]pyrazoles were chosen their significant potential pharmaceuticals industry. emphasizes sustainable are becoming more modern particularly due reusability lower environmental impact, making them ideal industrial applications.

Language: Английский

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Sustainable and Environmentally-Friendly Synthesis of 1,4-Dihydropyrano[2,3-c]pyrazoles from Ketones in TPGS-750-M

Organic Preparations and Procedures International, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 8

Published: Aug. 29, 2024

Language: Английский

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