ChemInform Abstract: Introduction of a Novel Nanosized N-Sulfonated Broensted Acidic Catalyst for the Promotion of the Synthesis of Polyhydroquinoline Derivatives via Hantzsch Condensation under Solvent-Free Conditions.

ChemInform ◽  
2016 ◽  
Vol 47 (30) ◽  
Author(s):  
Omid Goli-Jolodar ◽  
Farhad Shirini ◽  
Mohadeseh Seddighi
Keyword(s):  
Solvent Free ◽  
Acidic Catalyst ◽  
Solvent Free Conditions ◽  
Hantzsch Condensation

Introduction of a novel nanosized N-sulfonated Brönsted acidic catalyst for the promotion of the synthesis of polyhydroquinoline derivatives via Hantzsch condensation under solvent-free conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26026-26037 ◽  
Author(s):  
Omid Goli-Jolodar ◽  
Farhad Shirini ◽  
Mohadeseh Seddighi
Keyword(s):  
Sulfonic Acid ◽  
Solvent Free ◽  
Acidic Catalyst ◽  
H Nmr ◽  
Solvent Free Conditions ◽  
Afm Analysis ◽  
Hantzsch Condensation ◽  
Different Types ◽  
Ft Ir ◽  
C Nmr

In this research NS-C4(DABCO-SO3H)2)·4Cl as a new nano sized N-sulfonic acid was prepared and characterized using different types of methods including FT-IR, 1H NMR, 13C NMR, mass, XRD, TGA, SEM and AFM analysis.

scholarly journals An efficient one-pot synthesis of polyhydroquinoline derivatives via Hantzsch condensation using heterogeneous catalyst under solvent-free conditions

ARKIVOC ◽  
2006 ◽  
Vol 2006 (2) ◽  
pp. 201-206 ◽  
Author(s):  
Muchchintala Maheswara ◽  
Vidavalur Siddaiah ◽  
Guri Lakishmi Vasantha Damu ◽  
Chunduri Venkata Rao
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Hantzsch Condensation

scholarly journals One-Pot Synthesis of 1,8-Dioxodecahydroacridines and Polyhydroquinoline using 1,3-Di (bromo or chloro)-5,5-Dimethylhydantoin as a Novel and Green Catalyst under Solvent-Free Conditions

2017 ◽  
Vol 57 (4) ◽  
Author(s):  
Behrooz Maleki ◽  
Reza Tayebee ◽  
Mina Kermanian ◽  
Samaneh Sedigh Ashrafi
Keyword(s):  
Ethyl Acetoacetate ◽  
Ammonium Acetate ◽  
Solvent Free ◽  
Environmentally Benign ◽  
One Pot ◽  
Dicarbonyl Compounds ◽  
Green Catalyst ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Hantzsch Condensation

Solvent-free, one-pot synthesis of polyhdroquinoline and 1,8-dioxodecahydroacridine derivatives have been described via Hantzsch condensation of various aldehydes, ammonium acetate with (<em>i</em>) cyclic 1,3-dicarbonyl compounds and ethyl acetoacetate and (<em>ii</em>) cyclic 1,3-dicarbonyl compounds (2 mmoles) in a very simple, efficient, and environmentally benign method using 1,3-(dibromo or dichloro)-5,5-dimethylhydantoin as a cheap, non-toxic and neutral catalyst with up to excellent yields.

Withdrawal Notice: Recent Advances in Sonogashira Cross-Coupling Reactions Under Solvent-Free Conditions

2020 ◽  
Vol 24 ◽  
Author(s):  
Teng Wang ◽  
Zongrui Liu ◽  
Songlin Wang ◽  
Esmail Vessally
Keyword(s):  
Organic Chemistry ◽  
Editorial Policy ◽  
Cross Coupling ◽  
Solvent Free ◽  
Coupling Reactions ◽  
Editorial Policies ◽  
Cross Coupling Reactions ◽  
Recent Advances ◽  
Solvent Free Conditions ◽  
Copyright Permission

The article has been withdrawn at the request of editor of the journal Current Organic Chemistry: Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused. The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.com/editorial-policies-main.php BENTHAM SCIENCE DISCLAIMER: It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting the article for publication the authors agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism or fabricated information is discovered. By submitting a manuscript, the authors agree that the copyright of their article is transferred to the publishers if and when the article is accepted for publication.

Chlorosulfonic Acid Supported Piperidine-4-carboxylic Acid (PPCA) Functionalized Fe3O4 Nanoparticles (Fe3O4-PPCA): The Efficient, Green and Reusable Nanocatalyst for the Synthesis of Pyrazolyl Coumarin Derivatives under Solvent-Free Conditions

2019 ◽  
Vol 22 (2) ◽  
pp. 123-128
Author(s):  
Setareh Habibzadeh ◽  
Hassan Ghasemnejad-Bosra ◽  
Mina Haghdadi ◽  
Soheila Heydari-Parastar
Keyword(s):  
Carboxylic Acid ◽  
Fe3o4 Nanoparticles ◽  
High Efficiency ◽  
Reaction Times ◽  
Chlorosulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Solvent Free Conditions

Background: In this study, we developed a convenient methodology for the synthesis of coumarin linked to pyrazolines and pyrano [2,3-h] coumarins linked to 3-(1,5-diphenyl-4,5- dihydro-1H-pyrazol-3-yl)-chromen-2-one derivatives using Chlorosulfonic acid supported Piperidine-4-carboxylic acid (PPCA) functionalized Fe3O4 nanoparticles (Fe3O4-PPCA) catalyst. Materials and Methods:: Fe3O4-PPCA was investigated as an efficient and magnetically recoverable Nanocatalyst for the one-pot synthesis of substituted coumarins from the reaction of coumarin with a variety of aromatic aldehydes in high to excellent yield at room temperature under solvent-free conditions. The magnetic nanocatalyst can be easily recovered by applying an external magnet device and reused for at least 10 reaction runs without considerable loss of reactivity. Results and Conclusion: The advantages of this protocol are the use of commercially available materials, simple and an inexpensive procedure, easy separation, and an eco-friendly procedure, and it shows good reaction times, good to high yields, inexpensive and practicability procedure, and high efficiency.

Sign in / Sign up

Export Citation Format

Share Document