89607-41-0

Upstream product

• 2972-74-9 2-(3-bromobenzylidene)malononitrile 
• 108-26-9 3-methyl-2-pyrazoline-5-one 
• 3132-99-8 m-bromobenzoic aldehyde 
• 109-77-3 malononitrile 
• 141-97-9 ethyl acetoacetate 
• 7803-57-8 hydrazine hydrate 

Relevant academic research and scientific papers

Nano silica extracted from horsetail plant as a natural silica support for the synthesis of H3PW12O40 immobilized on aminated magnetic nanoparticles (Fe3O4@SiO2-EP-NH-HPA): a novel and effi

Abstract: In this work, nanomesoporous silica has been prepared from horsetail (Equisetum arvense), which is a medicinal plant, with high surface area. This natural silica has been applied as a support to prepare H3PW12O40

DABA MNPs: A new and efficient magnetic bifunctional nanocatalyst for the green synthesis of biologically active pyrano[2,3-: C] pyrazole and benzylpyrazolyl coumarin derivatives

In this work, a new core-shell magnetic silica nanocatalyst functionalized with 3,4-diaminobenzoic acid (Fe3O4@SiO2@PTS-DABA) was successfully prepared and characterized using different spectroscopic methods or techniques including FT-IR, FE-SEM, VSM, XRD

Catalyst-free green synthesis of dihydropyrano[2,3-c]pyrazole scaffolds assisted by ethylene glycol (E-G) as a reusable and biodegradable solvent medium

Abstract: We revealed a catalyst-free, green and rapid one-pot four-component tandem strategy for the preparation of dihydropyrano[2,3-c]pyrazoles – a biologically significant scaffold – via Knoevenagel-Michael cyclocondensation based on green chemistry p

Synthesis of pyranopyrazoles using nano-Fe-[phenylsalicylaldiminemethylpyranopyrazole]Cl2 as a new Schiff base complex and catalyst

By the condensation reaction of benzaldehyde with ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of FeCl2, a pyranopyrazole derivative was prepared which was then reacted with salicylaldehyde to afford nano-Fe-[phenylsalicylaldiminemethylpyranopyrazole]Cl2 (nano-[Fe-PSMP]Cl2). The prepared nano-Schiff base complex was fully characterized using Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, differential thermogravimetry, scanning electron microscopy and UV–visible spectroscopy, and was used as an efficient and catalyst for the preparation of pyranopyrazoles.

A ternary hybrid system based on combination of mesoporous silica, heteropolyacid and double-layered clay: an efficient catalyst for the synthesis of 2,4-dihydro-3H-pyrazol-3-ones and pyranopyrazoles in aqueous medium: studying the effect of the synthetic

SBA/hydrotalcite/heteropolyacid nanocomposite is synthesized via a novel procedure in which the as-prepared heteropolyacid-loaded SBA-15 was impregnated with calcined hydrotalcite. The ternary hybrid system was characterized by using SEM/EDS, XRD, BET, TP

Ce(III) immobilized on aminated poly(vinyl chloride): high-performance synergistic bifunctional acid–base catalyst for one-pot synthesis of 1,4-dihydropyrano[2,3-c]pyrazoles

A bifunctional acid–base catalyst of CeIII immobilized on ethylenediamine (EDA)-grafted poly(vinyl chloride) (PVC) has been prepared by a simple approach. First, PVC was treated with EDA to afford aminated poly(vinyl chloride) (PVC–EDA). Therea

Polypyrrole/Fe3O4/CNT as a recyclable and highly efficient catalyst for one-pot three-component synthesis of pyran derivatives

Polypyrrole (PPY)/Fe3O4/CNT has been synthesized and characterized by FT-IR, TEM and SEM techniques and its catalytic activity has been evaluated in the synthesis of several series of pyran derivatives. Tetrahydrobenzo[b]pyranes, 4H-

Synthesis of pyrano[2,3-c]pyrazole derivatives using Fe3O4@SiO2@piperidinium benzene-1,3-disulfonate (Fe3O4@SiO2 nanoparticle-supported IL) as a novel, green and heterogeneous catalyst

A simple, green and efficient protocol for the one-pot four-component synthesis of pyrano[2,3-c]pyrazole derivatives produced from reaction between aryl aldehydes, ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of nano magnetic piperidinium benzene-1,3-disulfonate was synthesized in water at 60 °C. The Fe3O4@SiO2 nanoparticle-supported IL was designed and synthesized. The present process offers advantages such as clean reaction, short reaction time, good to excellent yield, easy purification and easy recoverable catalyst.