Efficient Synthesis of 2-amino-4H-chromene Derivatives in the Presence of Piperazine-functionalized Fe3O4/SiO2 Magnetic Nanoparticles as a New Heterogeneous Reusable Catalyst Under Solvent-free Conditions

2014 ◽  
Vol 11 (6) ◽  
pp. 432-439 ◽  
Author(s):  
Akbar Mobinikhaledi ◽  
Hassan Moghanian ◽  
Zeinab Souri
Keyword(s):  
Magnetic Nanoparticles ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Solvent Free Conditions

scholarly journals A Solvent-Free Protocol for the Green Synthesis of 5-Arylidene-2,4-thiazolidinediones Using Ethylenediamine Diacetate as Catalyst

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Yuliang Zhang ◽  
Zhongqiang Zhou
Keyword(s):  
Knoevenagel Condensation ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Solvent Free Conditions ◽  
High Yields ◽  
Work Up ◽  
Solvent Free Reaction

A simple and efficient synthesis of 5-arylidene-2,4-thiazolidinediones by the Knoevenagel condensation of aromatic aldehydes with 2,4-thiazolidinedione catalyzed by ethylenediamine diacetate under solvent-free conditions is described. The major advantages of this method are simple experimental and work-up procedures, solvent-free reaction conditions, small amount of catalyst, short reaction time, high yields, and utilization of an inexpensive and reusable catalyst.

l-proline N-sulfonic acid-functionalized magnetic nanoparticles: a novel and magnetically reusable catalyst for one-pot synthesis of 3,4-dihydropyrimidine-2-(1H)-thiones under solvent-free conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59343-59351 ◽  
Author(s):  
M. Afradi ◽  
N. Foroughifar ◽  
H. Pasdar ◽  
H. Moghanian
Keyword(s):  
Magnetic Nanoparticles ◽  
Sulfonic Acid ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Functionalized Magnetic Nanoparticles

Synthesis, characterization and utilization of the l-proline N-sulfonic acid-functionalized magnetic nanoparticles as a novel magnetically reusable acid catalyst for the synthesis of 3,4-dihydropyrimidine-2-[1H]thione derivatives is reported.

Efficient synthesis of 2-indolyl-1-nitroalkanes catalyzed by tetramethyl-tetra-3,4-pyridinoporphyrazinato copper(II) methyl sulfate

2012 ◽  
Vol 16 (02) ◽  
pp. 227-234 ◽  
Author(s):  
Elham Safaei ◽  
Sara Sobhani ◽  
Nasrin Razavi
Keyword(s):  
Michael Addition ◽  
Solvent Free ◽  
New Method ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Methyl Sulfate ◽  
Solvent Free Conditions

A new method for the synthesis of 2-indolyl-1-nitroalkanes from indoles and β-nitrostyrene via Michael addition catalyzed by [ Cu (3,4-tmtppa)] (MeSO4)4 as a reusable catalyst under solvent-free conditions is described. This method has been also successfully applied for Michael addition of 3-methyl-1-phenyl-5-pyrazolone with β-nitrostyrenes.

scholarly journals Efficient and solvent-free synthesis of 1-amidoalkyl-2-naphthols using N,N,N’,N’-tetrabromobenzene-1,3-disulfonamide

2010 ◽  
Vol 8 (5) ◽  
pp. 1086-1089 ◽  
Author(s):  
Ramin Ghorbani-Vaghei ◽  
Seyedeh Malaekehpour
Keyword(s):  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
Amidoalkyl Naphthols ◽  
Solvent Free Conditions ◽  
High Yields ◽  
Solvent Free Synthesis

AbstractN,N,N,’N’-Tetrabromobenzene-1,3-disulfonamide [TBBDA] is found to be a reusable catalyst for efficient synthesis of various amidoalkyl naphthols from β-naphthol, aromatic aldehydes and urea in good to high yields under solvent-free conditions.

Efficient synthesis of secondary and primary dialkyl α-aminophosphonates catalyzed by tetramethyl-tetra-3,4-pyridinoporphyrazinato copper(II) methyl sulfate under solvent-free conditions

2008 ◽  
Vol 12 (07) ◽  
pp. 849-856 ◽  
Author(s):  
Sara Sobhani ◽  
Elham Safaei ◽  
Mozaffar Asadi ◽  
Fariba Jalili ◽  
Zahra Tashrifi
Keyword(s):  
Ammonium Acetate ◽  
Catalytic Amount ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Diethyl Phosphite ◽  
Efficient Synthesis ◽  
Methyl Sulfate ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Heterocyclic Aldehydes

An efficient method for the synthesis of secondary and primary dialkyl α-aminophosphonates under solvent-free conditions by one-pot reaction of aldehydes/ketones, amines/ammonium acetate and trialkyl/diethyl phosphite in the presence of a low catalytic amount of [ Cu (3,4-tmtppa)]( MeSO 4)4(0.16 mol%) as a highly stable and reusable catalyst, is described. By this method, aromatic, aliphatic, cyclic and heterocyclic aldehydes, hindered and cage ketones are converted into their corresponding α-aminophosphonates in good to excellent yields.

1-Methyl-3-(propyl-3-sulfonic acid)imidazolium triflate supported on magnetic nanoparticles: an efficient and reusable catalyst for synthesis of mono- and bis-isobenzofuran-1(3H)-ones under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15274-15282 ◽  
Author(s):  
Forouz Rastegari ◽  
Iraj Mohammadpoor-Baltork ◽  
Ahmad R. Khosropour ◽  
Shahram Tangestaninejad ◽  
Valiollah Mirkhani ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Sulfonic Acid ◽  
Thermal Conditions ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Efficient Procedure ◽  
Solvent Free Conditions ◽  
Mw Irradiation

An efficient procedure for the synthesis of isobenzofuran-1(3H)-one derivatives in the presence of [HSO3PMIM]OTf–SiO2@MNPs as a highly recyclable catalyst under solvent-free thermal conditions and MW irradiation is reported.

Sulfonic acid-functionalized silica-coated magnetic nanoparticles as an efficient reusable catalyst for the synthesis of 1-substituted 1H-tetrazoles under solvent-free conditions

2014 ◽  
Vol 43 (34) ◽  
pp. 12967-12973 ◽  
Author(s):  
Hossein Naeimi ◽  
Samaneh Mohamadabadi
Keyword(s):  
Magnetic Nanoparticles ◽  
Green Chemistry ◽  
Magnetite Nanoparticles ◽  
Sulfonic Acid ◽  
Solvent Free ◽  
Organic Reactions ◽  
Reusable Catalyst ◽  
Functionalized Silica ◽  
Efficient System ◽  
Solvent Free Conditions

Regarding green chemistry goals, silica-coated magnetite nanoparticles open up a new avenue to introduce a very useful and efficient system for facilitating catalyst recovery in different organic reactions.

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