Anchoring of ruthenium onto imine-functionalized zeolite beta: an efficient route for the synthesis of 4H-benzo[b]pyrans and pyrano[c]chromenes

2014 ◽  
Vol 92 (11) ◽  
pp. 1086-1091 ◽  
Author(s):  
Khalil Tabatabaeian ◽  
Mohammad Ali Zanjanchi ◽  
Manouchehr Mamaghani ◽  
Ali Dadashi
Keyword(s):  
Significant Loss ◽  
Zeolite Beta ◽  
Bet Surface Area ◽  
Reusable Catalyst ◽  
Scanning Electron Micrographs ◽  
X Ray Diffraction ◽  
One Pot ◽  
Efficient Catalyst ◽  
Efficient Route ◽  
The One

The synthesis and characterization of a highly efficient and reusable catalyst, ruthenium immobilized in zeolite beta, are reported. The catalyst was characterized by powder X-ray diffraction, BET surface area measurements, scanning electron micrographs, Fourier-transform infrared spectroscopy, inductive coupled plasma, and elemental analysis. The supported material was used as an efficient catalyst for the one-pot three-component synthesis of 4H-benzo[b]pyrans and pyrano[c]chromenes in good yields. The catalyst was separated from the reaction mixture and reused up to five runs without significant loss of activity.

scholarly journals An Efficient Synthesis of 1,8-Dioxo-Octahydroxanthenes Derivatives Using Heterogeneous Ce-ZSM-11 Zeolite Catalyst

2018 ◽  
Vol 13 (3) ◽  
pp. 436 ◽  
Author(s):  
Rameshwar R. Magar ◽  
Ganesh T. Pawar ◽  
Sachin P. Gadekar ◽  
Machhindra Karbhari Lande
Keyword(s):  
Zeolite Catalyst ◽  
Bet Surface Area ◽  
High Yield ◽  
Efficient Synthesis ◽  
X Ray Diffraction ◽  
One Pot ◽  
Efficient Catalyst ◽  
Temperature Programmed ◽  
The One ◽  
Work Up

The Ce-ZSM-11 zeolite has been used as an efficient catalyst for the one pot synthesis of 1,8-dioxo-octahydroxanthene derivatives from aromatic aldehyde and 5,5-dimethyl-cyclohexane-1,3-dione under reflux condition. The catalyst was characterized by Powder X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmer-Teller (BET) surface area analysis, and Temperature Programmed Desorption (TPD) techniques. This method provides several advantageous such as use of inexpensive catalyst, simple work-up procedure, high yield of desired product and reusability of catalyst. Copyright © 2018 BCREC Group. All rights reservedReceived: 5th January 2018; Revised: 25th May 2018; Accepted: 27th May 2018How to Cite: Magar, R.R., Pawar, G.T., Gadekar, S.P., Lande, M.K. (2018). An Efficient Synthesis of  1,8-Dioxo-Octahydroxanthenes Derivatives Using Heterogeneous Ce-ZSM-11 Zeolite Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (3): 436-446 (doi:10.9767/bcrec.13.3.2062.436-446)Permalink/DOI: https://doi.org/10.9767/bcrec.13.3.2062.436-446 

A Suitable One-Pot Synthesis of 3,4-Dihydropyrano[3,2-c]Chromenes Using Magnetic Nanoparticles Tag: Piperidinium Benzene-1,3-Disulfonate Ionic Liquid as a Novel, Green, Efficient and Reusable Catalyst in Aqueous Medium

2017 ◽  
Vol 14 (6) ◽  
pp. 904-911 ◽  
Author(s):  
Ramin Ghorbani-Vaghei ◽  
Jafar Mahmoodi ◽  
Yaser Maghbooli ◽  
Azadeh Shahriari
Keyword(s):  
Ionic Liquid ◽  
Magnetic Nanoparticles ◽  
Reaction Times ◽  
Catalytic Amount ◽  
High Yield ◽  
Reusable Catalyst ◽  
One Pot ◽  
Efficient Catalyst ◽  
Water Solvent ◽  
The One

Background: The synthesis of 3,4-dihydropyrano[3,2-c]chromenes via the one-pot three-component reactions of various aldehydes, malononitrile, and 4-hydroxycumarin at 60 °C in water as a solvent by the magnetic nanoparticles tag: piperidinium benzene-1,3-disulfonate ionic liquid as a green and efficient catalyst. Some benefits of the presented technique are significant cost impact, impressive catalysis and the ability to reuse of the catalyst. The current procedure offers high yield, short reaction times, neat reaction and simple reusable catalyst. Objective: A magnetic nanoparticles tag: piperidinium benzene-1,3-disulfonate ionic liquid as a green, efficient, reusable and heterogeneous catalyst was used for the synthesis of 3,4-dihydropyrano[3,2-c]chromenes. Method: We have described an efficient and green process for the synthesis of the one-pot three-component synthesis of 3,4-dihydropyrano[3,2-c]chromenes from the reaction between 4-hydroxy-coumarin with malononitrile and aldehydes in the presence of catalytic amount of magnetic nanoparticles tag: piperidinium benzene-1,3-disulfonate ionic liquid as a novel and powerful nano ionic liquid with good to excellent yields and in a short reaction time in water solvent at 60 °C. Result: The main advantage of this process is the simplicity of the work-up and the products can be isolated without chromatography. Conclusion: We suggest that the method has also various additional advantages such as low loading of catalyst, clean reaction, which makes it a suitable and noteworthy approach for the synthesis of 3,4- dihydropyrano[3,2-c]chromenes.

Zirconium(IV) 4-sulphophenylethyliminobismethylphosphonate as an efficient and reusable catalyst for one-pot synthesis of 3,4-dihydropyrimidones under solvent-free conditions

2011 ◽  
Vol 65 (6) ◽  
Author(s):  
Xin-Bin Yang ◽  
Xiang-Kai Fu ◽  
Yu Huang ◽  
Ren-Quan Zeng
Keyword(s):  
Catalytic Activity ◽  
Elemental Analysis ◽  
Biginelli Reaction ◽  
Significant Loss ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
One Pot ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
Simple Filtration

AbstractZirconium(IV) 4-sulphophenylethyliminobismethylphosphonate (ZSBEDP) was prepared and characterised by elemental analysis, IR, TG-DSC, and XRD. ZSBEDP was found to be an efficient catalyst for the Biginelli reaction of aromatic aldehyde, ethyl acetoacetate, and urea or thiourea under solvent-free conditions so as to give 3,4-dihydropyrimidones in good to excellent yields. The catalyst can be separated by simple filtration and reused without significant loss of its catalytic activity.

Commercial ZrO2 as a new, efficient, and reusable catalyst for the one-step synthesis of quinolines in solvent-free conditions

2009 ◽  
Vol 87 (8) ◽  
pp. 1122-1126 ◽  
Author(s):  
Mona Hosseini-Sarvari
Keyword(s):  
Catalytic Activity ◽  
Carbonyl Compound ◽  
Significant Loss ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
One Step ◽  
The One ◽  
High Yields

Commercially available zirconia (ZrO2) is reported as an extremely efficient catalyst for the synthesis of quinolines. A one-step reaction of 2-aminoarylketones and a carbonyl compound (Friedlander reaction) took place under solvent-free conditions to afford the corresponding quinolines in good-to-high yields in the presence of ZrO2. Furthermore, the catalyst is reused several times without any significant loss of its catalytic activity.

scholarly journals Copper(II) Anchored on Amine-Functionalized MMT: A Highly Efficient Catalytic System for the One-Pot Synthesis of Bispyrano[2,3-c]pyrazole Derivatives

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Majid Ahmadzadeh ◽  
Masoud Sadeghi ◽  
Javad Safari
Keyword(s):  
Condensation Reaction ◽  
Significant Loss ◽  
Pyrazole Derivatives ◽  
X Ray Diffraction ◽  
Phenyl Hydrazine ◽  
One Pot ◽  
X Ray ◽  
Amine Functionalized ◽  
The One ◽  
High Yields

In this study, preparation of pyridine-2-carboimine copper complex immobilized on amine-functionalized nanoclay montmorillonite K10 was reported. The products were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and thermogravimetric analysis (TGA). The catalytic activity of this new nanocatalyst, as a natural, renewable, inexpensive, and heterogeneous catalyst, was very effective for the four-component condensation reaction of hydrazine hydrate (or phenyl hydrazine), malononitrile, β-ketoester, and terephthalaldehyde (or isophthalaldehyde) toward the synthesis of multisubstituted bispyrano[2,3-c]pyrazole derivatives. From the viewpoint of green chemistry, the advantages of this approach are accessibility, simplicity, and high yields synthesis. The catalyst was recycled and reused four times without significant loss of activity.

scholarly journals Clean one-pot multicomponent synthesis of pyrans using a green and magnetically recyclable heterogeneous nanocatalyst

SynOpen ◽  
2021 ◽  
Author(s):  
Mina Ghassemi ◽  
Ali Maleki
Keyword(s):  
Room Temperature ◽  
Significant Loss ◽  
Copper Ferrite ◽  
Multicomponent Synthesis ◽  
Thermo Gravimetric ◽  
Sem Images ◽  
One Pot ◽  
Three Component Reaction ◽  
Ft Ir ◽  
The One

Copper ferrite (CuFe2O4) magnetic nanoparticles (MNPs) were synthesized via thermal decomposition method and applied as a reusable and green catalyst in the synthesis of functionalized 4H-pyran derivatives using malononitrile, an aromatic aldehyde and a β-ketoester in ethanol at room temperature. Then it was characterized by Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX) analysis, scanning electron microscopy (SEM) images, thermo gravimetric and differential thermo gravimetric (TGA/DTG) analysis. The catalyst was recovered from the reaction mixture by applying an external magnet and decanting the mixture. Recycled catalyst was reused for several times without significant loss in its activity. Running the one-pot three-component reaction at room temperature, no use of eternal energy source and using a green solvent provide benign, mild, and environmentally friendly reaction conditions; as well, ease of catalyst recovering, catalyst recyclability, no use of column chromatography and good to excellent yields are extra advantages of this work.

scholarly journals Algal magnetic nickel oxide nanocatalyst in accelerated synthesis of pyridopyrimidine derivatives

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Javad Moavi ◽  
Foad Buazar ◽  
Mohammad Hosein Sayahi
Keyword(s):  
Nickel Oxide ◽  
Spherical Shape ◽  
Marine Macroalgae ◽  
Bet Surface Area ◽  
Nickel Oxide Nanoparticles ◽  
One Pot ◽  
Efficient Catalyst ◽  
Coating Agent ◽  
Synthesis Conditions ◽  
Nio Nps

AbstractThis research presents a novel biological route for the biosynthesis of nickel oxide nanoparticles (NiO NPs) using marine macroalgae extract as a reducing and coating agent under optimized synthesis conditions. XRD and TEM analyses revealed that phytosynthesized NiO NPs are crystalline in nature with a spherical shape having a mean particle size of 32.64 nm. TGA results indicated the presence of marine-derived organic constituents on the surface of NiO NPs. It is found that biogenic NiO NPs with BET surface area of 45.59 m2g−1 is a highly efficient catalyst for benign one-pot preparation of pyridopyrimidine derivatives using aqueous reaction conditions. This environmentally friendly procedure takes considerable advantages of shorter reaction times, excellent product yields (up to 96%), magnetically viable nanocatalyst (7 runs), low catalyst loadings, and free toxic chemical reagents.

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