Ball Mill–assisted Preparation of Nano-CaCO3 as a Novel and Green Catalyst–based Eggshell Waste

2013 ◽  
Vol 1 ◽  
pp. 194308921350716 ◽  
Author(s):  
Elaheh Mosaddegh ◽  
Asadollah Hassankhani ◽  
Sadegh Pourahmadi ◽  
Dadkhoda Ghazanfari
Keyword(s):  
Ball Mill ◽  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
High Catalytic Activity ◽  
X Ray Diffraction ◽  
Green Catalyst ◽  
Solvent Free Conditions ◽  
High Efficient ◽  
Particle Sizer ◽  
Eggshell Waste

Ball mill–assisted preparation of nano-bio Calcite (CaCO3) based on avian shell and its application as a novel, biodegradable, and heterogeneous catalyst with high catalytic activity and reusability in the green and high efficient synthesis of pyrano[4,3- b]pyrans via a condensation reaction of different aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2 H-pyran-2-one at 120°C under solvent-free conditions is reported. The reaction proceeds to completion within 5–30 min in 90–98% yield. The nanocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), elemental analysis, and laser particle sizer.

scholarly journals Facile and Efficient Synthesis of Xanthene Derivatives Mediated by Lanthanum(Iii) Nitrate Hexahydrate under Solvent Free Conditions

2020 ◽  
Vol 15 (2) ◽  
pp. 99-104
Author(s):  
Kabeer Ahmed Shaikh ◽  
Uddhav Nivrutti Chaudhar
Keyword(s):  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Biologically Active ◽  
Homogeneous Catalyst ◽  
High Catalytic Activity ◽  
Nitrate Hexahydrate ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Xanthene Derivatives

The present paper shows that lanthanum(III) nitrate hexahydrate can be used as mild and environment friendly homogeneous catalyst for an efficient one-pot multi-component synthesis of biologically active 1,8-dioxo-octahydroxanthene and 14H-dibenzo[a,j]xanthene derivatives. The solvent free condensation reaction of aromatic aldehydes and dimedone or β-naphthol was carried out at 70-80ºC during 10-30 min. The advantages of this eco-friendly synthesis route are numerous, and include the use of an inexpensive catalyst, high to excellent yield, short reaction time and high catalytic activity that can make this method an interesting alternative to multi-step approaches.

Synthesis of Indole Derivatives Using Biosynthesized ZnO-CaO Nanoparticles as an Efficient Catalyst

2021 ◽  
Vol 66 ◽  
pp. 61-71
Author(s):  
Tahereh Heidarzadeh ◽  
Navabeh Nami ◽  
Daryoush Zareyee
Keyword(s):  
Electron Microscopy ◽  
Indole Derivatives ◽  
X Ray Diffraction ◽  
Efficient Catalyst ◽  
X Ray ◽  
Transmission Electron ◽  
Solvent Free Conditions ◽  
Ft Ir ◽  
Eggshell Waste ◽  
Aromatic And Aliphatic Amines

The principal aim of this research is using biosynthesized ZnO-CaO nanoparticles (NPs) for preparation of indole derivatives. ZnO-CaO NPs have been prepared using Zn(CH3COO)2 and eggshell waste powder in solvent-free conditions. Morphology and structure of NPs were determined by FT-IR, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy dispersive spectra (EDS). It was used as a highly efficient catalyst for the synthesis of indole derivatives. Some indole derivatives were synthesized by the reaction of indole, formaldehyde, aromatic and aliphatic amines in the presence of ZnO-CaO NPs (5 mol%) in ethanol under reflux conditions. The assigned structure was further established by CHN analyses, NMR, and FT-IR spectra. Because of excellent capacity, the exceedingly simple workup and good yield, eco-friendly catalyst ZnO-CaO NPs were proved to be a good catalyst for this reaction.

scholarly journals Ag2O/GO/TiO2 Composite Nanostructure: an efficient heterogeneous catalyst for one pot synthesis of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes derivatives

2021 ◽  
Author(s):  
Fatemeh Samandi Zadeh ◽  
Mohammad Kazem Mohammadi ◽  
Ayeh Raeiatzadeh ◽  
Neda Hasanzadeh
Keyword(s):  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
One Pot ◽  
Transmission Electron ◽  
One Pot Condensation ◽  
Effective Synthesis ◽  
Ft Ir ◽  
Biginelli Condensation

Abstract The simple and efficient synthesis reaction was used for preparing Bis (dihydropyrimidinone) derivatives through Biginelli condensation reaction of terephthalic aldehyde, 1, 3-dicarbonyl compounds and (thio) urea or guanidine and tetrahydro-4H-chromenes via one pot condensation of aromatic aldehydes, malononitrile and dimedone with Ag2O/GO/TiO2 composite nanostructures as a catalyst. The structural functionalities and morphological observations of catalyst were obtained using characterization techniques of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transfer infrared (FT-IR) spectroscopy and transmission electron microscope (TEM). The structures of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes confirmed by FT- IR, NMR and mass spectroscopy. Excellent yields of the products, simple reaction process and simple work-up are attractive features of these effective synthesis methods.

scholarly journals Ag2O/GO/TiO2 Composite Nanostructure: An Efficient Heterogeneous Catalyst for one Pot Synthesis of Bis (Dihydropyrimidinone) and Tetrahydro-4H-chromenes Derivatives

2020 ◽  
Author(s):  
Fatemeh Samandi Zadeh ◽  
Mohammad Kazem Mohammadi ◽  
Ayeh Rayatzadeh ◽  
Neda Hasanzadeh
Keyword(s):  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
One Pot ◽  
Transmission Electron ◽  
One Pot Condensation ◽  
Effective Synthesis ◽  
Ft Ir ◽  
Biginelli Condensation

Abstract The simple and efficient synthesis reaction was used for preparing Bis (dihydropyrimidinone) derivatives through Biginelli condensation reaction of terephthalic aldehyde, 1, 3-dicarbonyl compounds and (thio) urea or guanidine and tetrahydro-4H-chromenes via one pot condensation of aromatic aldehydes, malononitrile and dimedone with Ag2O/GO/TiO2 composite nanostructures as a catalyst. The structural functionalities and morphological observations of catalyst were obtained using characterization techniques of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transfer infrared (FT-IR) spectroscopy and transmission electron microscope (TEM). The structures of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes confirmed by FT- IR, NMR and mass spectroscopy. Excellent yields of the products, simple reaction process and simple work-up are attractive features of these effective synthesis methods.

Friedel–Crafts alkylation of 4-hydroxycoumarin over silica-bonded 1,4-diaza-bicyclo[2.2.2] octane-sulfonic acid chloride as nanostructured heterogeneous catalyst

2017 ◽  
Vol 95 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Ehsan Noroozizadeh ◽  
Ahmad Reza Moosavi-Zare ◽  
Mohammad Ali Zolfigol ◽  
Abdolkarim Zare ◽  
Mahmoud Zarei
Keyword(s):  
Heterogeneous Catalyst ◽  
Acid Chloride ◽  
Sulfonic Acid ◽  
Condensation Reaction ◽  
Gravimetric Analysis ◽  
Thermal Gravimetric ◽  
X Ray Diffraction ◽  
Efficient Catalyst ◽  
X Ray ◽  
Solvent Free Conditions

A novel nanostructured heterogeneous catalyst, namely silica-bonded 1,4-diaza-bicyclo[2.2.2]octane-sulfonic acid chloride (SBDBSAC), has been synthesized and fully characterized by several techniques, including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential thermal gravimetric (DTG), scanning electron microscope (SEM), and energy dispersive X-ray analysis (EDX). Afterward, the nanostructured catalyst was utilized as an efficient catalyst for the synthesis of bis-coumarin derivatives by the condensation reaction of arylaldehydes with 4-hydroxycoumarin at 70 °C under solvent-free conditions.

scholarly journals Synthesis, Characterization, Crystallographic Studies of 5-Acetyl-8-hydroxyquinoline and Their Chalcone Derivatives

2020 ◽  
Vol 32 (7) ◽  
pp. 1609-1613
Author(s):  
C.B. Vagish ◽  
Karthik Kumara ◽  
N.K. Lokanath ◽  
K. Ajay Kumar ◽  
P.G. Chandrasherkar
Keyword(s):  
Single Crystal ◽  
Benzoyl Chloride ◽  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Spectral Studies ◽  
Monoclinic Crystal System ◽  
X Ray Diffraction ◽  
Monoclinic Crystal ◽  
One Pot ◽  
X Ray

An efficient, easy and one pot synthesis for the Friedel-Craft acetylation reaction of quinolines was developed. The reaction between 8-hydroxyquinoline and acetyl/benzoyl chloride in nitrobenzene immediately flocculates as yellow precipitate. On further addition of Lewis acid causes the Friedel-Craft acetylation leads to formation of acetylated quionlines in good yields. The structure of compound 5-acetyl-8-hydroxyquinoline (3) was confirmed by single crystal X-ray diffraction studies. The compound crystallizes in the monoclinic crystal system with the space group P21/c. The synthesized acetylated quionlines undergoes condensation reaction with aromatic aldehydes leads to 8-hydroxyquinoline chalcones derivatives. The products were characterized by spectral studies, elemental analysis and single crystal X-ray diffraction studies.

scholarly journals One-pot Synthesis of Benzo[c]acridine Derivatives Using SBA-Pr-SO3H as Nano Catalyst

2017 ◽  
Vol 58 (2) ◽  
Author(s):  
Ghodsi Mohammadi Ziarani ◽  
Somayeh Mousavi ◽  
Mahshid Rahimifard ◽  
Alireza Badiei
Keyword(s):  
Sulfonic Acid ◽  
Condensation Reaction ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
One Pot ◽  
Acridine Derivatives ◽  
One Pot Synthesis ◽  
Nano Catalyst ◽  
Solvent Free Conditions

One-pot synthesis of benzo[<em>c</em>]acridine derivatives via the three-component condensation reaction of aromatic aldehydes, 1-naphtylamine, and dimedone using sulfonic acid functionalized SBA-15 (SBA-Pr-SO<sub>3</sub>H) as nanoporous acid catalyst under solvent-free conditions was studied. This reaction is an efficient, green and  environmentally friendly procedure.

Triethanolammonium Acetate ([TEAH][OAc]) as a Recyclable Promoter and Medium for Green and Four-component Synthesis of Polyfunctionalized Pyrrole Derivatives

2020 ◽  
Vol 17 ◽  
Author(s):  
Behjat Pouramiri ◽  
Milad Daneshi ◽  
Fatemeh Seyedi ◽  
Najmeh Amirmahani
Keyword(s):  
Ionic Liquid ◽  
Aromatic Amines ◽  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Easy Access ◽  
Green Solvent ◽  
Methyl Acetoacetate ◽  
Pyrrole Derivatives ◽  
Short Reaction Time ◽  
Solvent Free Conditions

: Multi-component synthesis of functionalized pyrrole derivatives was achieved via four-component condensation reaction of ethyl acetoacetate/ methyl acetoacetate, aromatic amines, nitromethane, and aromatic aldehydes using triethanolammonium acetate ([TEAH] [OAc]) ionic liquid as a green solvent and catalyst. The easy access to highly substituted pyrroles, easy reusability of the catalyst, broad substrate scopes, straightforward, no column chromatography, short reaction time, good yields of products and solvent-free conditions make this protocol environmentally friendly and practically attractive.

Tungstate sulfuric acid: preparation, characterization, and application in catalytic synthesis of novel benzimidazoles

2012 ◽  
Vol 66 (7) ◽  
Author(s):  
Bahador Karami ◽  
Saeed Khodabakhshi ◽  
Zahra Haghighijou
Keyword(s):  
Sulfuric Acid ◽  
Ftir Spectroscopy ◽  
Condensation Reaction ◽  
Direct Synthesis ◽  
Catalytic Synthesis ◽  
Solvent Free ◽  
X Ray Diffraction ◽  
X Ray ◽  
Solvent Free Conditions ◽  
Work Up

AbstractTungstate sulfuric acid (TSA) was prepared, characterized, and applied for direct synthesis of novel and known benzimidazoles through a condensation reaction of o-phenylenediamines with orthoesters under solvent-free conditions. TSA was characterized by powdered X-ray diffraction (XRD), X-ray fluorescence (XRF), and FTIR spectroscopy. This novel and eco-friendly method is very cheap and has many advantages such as excellent yields, recyclable and eco-friendly catalyst, and simple work-up procedure.

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