Phosphotungstic acid grafted zeolite imidazolate framework as an effective heterogeneous nanocatalyst for the one‐pot solvent‐free synthesis of 3,4‐dihydropyrimidinones

2019 ◽  
Vol 33 (8) ◽  
Author(s):  
Reza Tayebee ◽  
Mojtaba Fattahi Abdizadeh ◽  
Nasrin Erfaninia ◽  
Amirhassan Amiri ◽  
Mehdi Baghayeri ◽  
...  
Keyword(s):  
Phosphotungstic Acid ◽  
Solvent Free ◽  
One Pot ◽  
Heterogeneous Nanocatalyst ◽  
The One ◽  
Solvent Free Synthesis

scholarly journals Superparamagnetic Iron Oxide as an Efficient Catalyst for the One-Pot, Solvent-Free Synthesis of 5,5-Disubstituted Hexahydropyrimidines and Their Spiro Analogues

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Fatemeh Janati ◽  
Majid M. Heravi ◽  
Ahmad Mirshokraie
Keyword(s):  
Iron Oxide ◽  
Superparamagnetic Iron Oxide ◽  
Solvent Free ◽  
One Pot ◽  
Efficient Catalyst ◽  
External Magnet ◽  
The One ◽  
Short Time ◽  
Solvent Free Synthesis

Superparamagnetic Fe3O4is shown to act as a very efficient catalyst for the one-pot, three-component synthesis of 5,5-disubstituted hexahydropyrimidines and their spiropiperidines. The catalyst is easily recovered by the use of an external magnet and reused in several reactions without any noticeable loss of activity. The products are obtained in short time and good purity upon separation of the catalyst and evaporation of the volatiles of the reaction mixture.

Microwave-assisted solvent-free synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by NH4OBr

2011 ◽  
Vol 76 (8) ◽  
pp. 989-995 ◽  
Author(s):  
Davood Azarifar ◽  
Kaveh Khosravi ◽  
Khadijeh Soleimani ◽  
Zohreh Najminejad
Keyword(s):  
Condensation Reaction ◽  
Solvent Free ◽  
Conventional Heating ◽  
One Pot ◽  
Keto Ester ◽  
Microwave Assisted ◽  
Catalytic Potential ◽  
Reaction Proceeds ◽  
The One ◽  
Solvent Free Synthesis

Catalytic potential of ammonium hypobromite in the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones from Biginelli-type condensation reaction between an aldehyde, β-keto ester and urea has been explored. The reaction proceeds under solvent-free conventional heating as well as microwave-irradiation conditions to afford the respective products in excellent yields.

MCM-41-SO3H as a nanoreactor for the one-pot, solvent-free synthesis of 1,8-dioxo-9-aryl decahydroacridines

2011 ◽  
Vol 49 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Shahnaz Rostamizadeh ◽  
Asiyeh Amirahmadi ◽  
Nasrin Shadjou ◽  
Ali M. Amani
Keyword(s):  
Solvent Free ◽  
One Pot ◽  
The One ◽  
Solvent Free Synthesis ◽  
Mcm 41

ChemInform Abstract: MCM-41-SO3H as a Nanoreactor for the One-Pot, Solvent-Free Synthesis of 1,8-Dioxo-9-aryl Decahydroacridines.

ChemInform ◽  
2012 ◽  
Vol 43 (25) ◽  
pp. no-no
Author(s):  
Shahnaz Rostamizadeh ◽  
Asiyeh Amirahmadi ◽  
Nasrin Shadjou ◽  
Ali M. Amani
Keyword(s):  
Solvent Free ◽  
One Pot ◽  
The One ◽  
Solvent Free Synthesis ◽  
Mcm 41

Graphene oxide–chitosan bionanocomposite: a highly efficient nanocatalyst for the one-pot three-component synthesis of trisubstituted imidazoles under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 33177-33184 ◽  
Author(s):  
Ali Maleki ◽  
Reza Paydar
Keyword(s):  
Graphene Oxide ◽  
Solvent Free ◽  
Organic Reaction ◽  
One Pot ◽  
Heterogeneous Nanocatalyst ◽  
Highly Efficient ◽  
Solvent Free Conditions ◽  
The One

An eco-friendly and clean GO–biopolymer heterogeneous nanocatalyst was prepared and characterized, which efficiently promoted an important organic reaction.

Solvent-free Synthesis of Novel Benzothiazole-substituted 4-Thiazolidinones Using Nano Silica-bonded 5-n-Propyl-octahydro-pyrimido[1,2-a]azepinium Chloride as Catalyst

2014 ◽  
Vol 67 (11) ◽  
pp. 1646 ◽  
Author(s):  
Robabeh Baharfar ◽  
Narges Shariati
Keyword(s):  
Acetic Acid ◽  
Solvent Free ◽  
Triphenyl Phosphite ◽  
Nano Silica ◽  
One Pot ◽  
Solvent Free Conditions ◽  
The One ◽  
High Yields ◽  
Solvent Free Synthesis

A series of novel benzothiazole-substituted 4-thiazolidinones were synthesised by the one-pot reaction of rhodanine-3-acetic acid derivatives, 2-aminothiophenol, and triphenyl phosphite in the presence of nano silica-bonded 5-n-propyl-octahydro-pyrimido[1,2-a]azepinium chloride (NSB-DBU) as heterogeneous reusable nanocatalyst under solvent-free conditions in high yields.

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