Ultrasound mediated synthesis of α-aminophosphonates and 3,4-dihydropyrimidin-2-ones using graphene oxide as a recyclable catalyst under solvent-free conditions

RSC Advances ◽  
2014 ◽  
Vol 4 (86) ◽  
pp. 45831-45837 ◽  
Author(s):  
Tamalika Bhattacharya ◽  
Biju Majumdar ◽  
Deepa Dey ◽  
Tridib K. Sarma
Keyword(s):  
Graphene Oxide ◽  
Ultrasonic Irradiation ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Multicomponent Synthesis ◽  
Solvent Free Conditions

Graphene oxide functions as an effective and reusable carbocatalyst for the multicomponent synthesis of α-aminophosphonates and 3,4-dihydropyrimidinones under solvent-free conditions using ultrasonic irradiation.

scholarly journals (+)-CSA Catalyzed Multicomponent Synthesis of 1-[(1,3-Thiazol-2-ylamino)methyl]-2-naphthols and Their Ring-Closure Reaction under Ultrasonic Irradiation

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Emel Pelit ◽  
Zuhal Turgut
Keyword(s):  
Ultrasonic Irradiation ◽  
Sulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Ring Closure ◽  
Multicomponent Synthesis ◽  
Effective Catalyst ◽  
Solvent Free Conditions ◽  
Naphthol Derivatives

New 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthols were obtained by condensation of 2-aminothiazole, aromatic aldehydes, and 2-naphthol in the presence of (+)-camphor-10-sulfonic acid ((+)-CSA) as an effective catalyst under ultrasound-promoted solvent-free conditions. The 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthol derivatives were converted in ring-closure reaction with formaldehyde to the corresponding naphthoxazine derivatives.

ChemInform Abstract: Nano Fe3O4 as Magnetically Recyclable Catalyst for the Synthesis of α-Aminophosphonates in Solvent-Free Conditions.

ChemInform ◽  
2011 ◽  
Vol 42 (26) ◽  
pp. no-no
Author(s):  
B. V. Subba Reddy ◽  
A. Siva Krishna ◽  
A. V. Ganesh ◽  
G. G. K. S. Narayana Kumar
Keyword(s):  
Recyclable Catalyst ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Nano Fe3o4 ◽  
Magnetically Recyclable Catalyst

Unprecedented one-pot multicomponent synthesis of propargylamines using Amberlyst A-21 supported CuI under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46074-46087 ◽  
Author(s):  
Giovanna Bosica ◽  
John Gabarretta
Keyword(s):  
Coupling Reaction ◽  
Solvent Free ◽  
Environmentally Benign ◽  
Terminal Alkynes ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Solvent Free Conditions

An environmentally benign, one-pot, A3-coupling reaction of various aldehydes, amines and terminal alkynes for the synthesis of propargylamine was catalysed by Amberlyst A-21 supported CuI, under heterogeneous and solvent-free conditions.

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

Formylation of amines and alcohols using aminopropylated mesoporous SBA-15 silica (APMS) as an efficient and recyclable catalyst

2011 ◽  
Vol 76 (12) ◽  
pp. 1979-1990 ◽  
Author(s):  
Reihaneh Malakooti ◽  
Sara Sobhani ◽  
Nasrin Razavi ◽  
Soheila Shafiei ◽  
Rezvan Mokhtari
Keyword(s):  
Formic Acid ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Efficient Catalyst ◽  
Solvent Free Conditions

Aminopropylated mesoporous SBA-15 silica (APMS) is introduced as a new, recyclable and efficient catalyst for the formylation of a variety of amines and alcohols by using readily available formic acid under solvent-free conditions.

scholarly journals ZnO Nanoparticles: A Highly Effective and Readily Recyclable Catalyst for the One-Pot Synthesis of 1,8-dioxo-decahydroacridine and 1,8-dioxooctahydro-xanthene Derivatives

2017 ◽  
Vol 57 (1) ◽  
Author(s):  
Javad Safaei-Ghomi ◽  
Mohammad Ali Ghasemzadeh ◽  
Safura Zahedi
Keyword(s):  
Zno Nanoparticles ◽  
Environmentally Friendly ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Xanthene Derivatives ◽  
Highly Effective ◽  
The One

ZnO nanoparticles as a worthwhile and recyclable catalyst have been used for the one-pot synthesis of 1,8-dioxo-decahydroacridines and 1,8-dioxooctahydro-xanthenes via multi-component reactions under solvent-free conditions. The presented method is mild, environmentally friendly, inexpensive and highly effective to give the products in good to excellent yields.

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