4-(4-Propylpiperazine-1-yl)butane-1-sulfonic acid-modified silica-coated magnetic nanoparticles: A novel and recyclable catalyst for the synthesis of 5-arylidinebarbituric acids and pyrano[2,3-d]pyrimidinedione derivatives in aqueous media

2018 ◽  
Vol 32 (12) ◽  
pp. e4605 ◽  
Author(s):  
M. Pourghasemi-Lati ◽  
F. Shirini ◽  
M. Alinia-Asli ◽  
M.A. Rezvani
Keyword(s):  
Magnetic Nanoparticles ◽  
Sulfonic Acid ◽  
Aqueous Media ◽  
Recyclable Catalyst ◽  
Modified Silica

scholarly journals Efficient N-formylation of primary aromatic amines using novel solid acid magnetic nanocatalyst

RSC Advances ◽  
2020 ◽  
Vol 10 (67) ◽  
pp. 41229-41236
Author(s):  
Jitendra Kumar Yadav ◽  
Priyanka Yadav ◽  
Satish K. Awasthi ◽  
Alka Agarwal
Keyword(s):  
Magnetic Nanoparticles ◽  
Aromatic Amines ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Recyclable Catalyst ◽  
Primary Amines ◽  
Magnetic Nanocatalyst ◽  
Reaction Conditions ◽  
Primary Aromatic Amines ◽  
First Time

Sulfonic acid functionalized over biguanidine fabricated silica-coated heterogeneous magnetic nanoparticles (NP@SO3H) have been synthesized, well characterized and explored for the first time, as an efficient and recyclable catalyst for N-formylation of primary amines under mild reaction conditions.

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.

Efficient one-pot click synthesis of β-hydroxy-1,2,3-triazoles catalyzed by copper(i)@phosphorated SiO2via multicomponent reaction in aqueous media

2014 ◽  
Vol 38 (11) ◽  
pp. 5429-5435 ◽  
Author(s):  
Hossein Naeimi ◽  
Vajihe Nejadshafiee
Keyword(s):  
Multicomponent Reaction ◽  
Aqueous Media ◽  
Recyclable Catalyst ◽  
One Pot ◽  
Click Synthesis

Cu(i)@phosphorated SiO2 as novel, eco-friendly, easy to prepare, recyclable catalyst for the synthesis of β-hydroxy-1,2,3-triazoles in water is reported.

scholarly journals Treatment of wastewaters containing acid, reactive and direct dyes using aminosilane functionalized silica

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Monika Wawrzkiewicz ◽  
Zbigniew Hubicki ◽  
Magdalena Nowacka ◽  
Łukasz Klapiszewski
Keyword(s):  
Langmuir Isotherm ◽  
Aqueous Media ◽  
Reactive Black 5 ◽  
Functionalized Silica ◽  
Acid Orange 7 ◽  
Direct Dyes ◽  
Modified Silica ◽  
Direct Blue ◽  
Langmuir Isotherm Model ◽  
Direct Blue 71

AbstractAminosilane modified silica was prepared and investigated for the adsorption of textile dyes such as C.I. Acid Orange 7 (AO7), C.I. Reactive Black 5 (RB5) and C.I. Direct Blue 71 (DB71) from aqueous media and wastewaters. The values of the sorption capacities obtained from the Langmuir isotherm model were: 5.3 mg g

Silica-bonded S-Sulfonic Acid: A Recyclable Catalyst for the Synthesis of Trisubstituted Imidazoles under Solvent-free Conditions

2010 ◽  
Vol 28 (4) ◽  
pp. 663-669 ◽  
Author(s):  
Khodabakhsh Niknam ◽  
Mohammad R. Mohammadizadeh ◽  
Salimeh Mirzaee ◽  
Dariush Saberi
Keyword(s):  
Sulfonic Acid ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Solvent Free Conditions
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