Benzylsulfonic acid functionalized mesoporous Zr-TMS catalysts: An efficient and recyclable catalyst for the preparation of coumarin derivatives by Pechmann condensation reaction

2007 ◽  
Vol 8 (5) ◽  
pp. 777-783 ◽  
Author(s):  
S. Selvakumar ◽  
M. Chidambaram ◽  
A.P. Singh
Keyword(s):  
Condensation Reaction ◽  
Recyclable Catalyst ◽  
Coumarin Derivatives ◽  
Pechmann Condensation

scholarly journals Barium Dichloride as a Powerful and Inexpensive Catalyst for the Pechmann Condensation without Using Solvent

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Saeed Khodabakhshi
Keyword(s):  
Green Chemistry ◽  
Organic Solvents ◽  
Condensation Reaction ◽  
Reaction Times ◽  
Solvent Free ◽  
Coumarin Derivatives ◽  
Inexpensive Method ◽  
Keto Esters ◽  
Pechmann Condensation ◽  
Solvent Free Conditions

Various coumarin derivatives have been efficiently synthesized via barium dichloride-catalyzed Pechmann condensation reaction of various phenols and β-keto esters under solvent-free conditions. This novel and inexpensive method has advantages such as short reaction times, excellent product yields, and avoidance of organic solvents in agreement with green chemistry principles.

Mesoporous zirconium phosphate: An efficient catalyst for the synthesis of coumarin derivatives through Pechmann condensation reaction

2011 ◽  
Vol 394 (1-2) ◽  
pp. 93-100 ◽  
Author(s):  
Apurba Sinhamahapatra ◽  
Narottam Sutradhar ◽  
Sandip Pahari ◽  
Hari C. Bajaj ◽  
Asit Baran Panda
Keyword(s):  
Zirconium Phosphate ◽  
Condensation Reaction ◽  
Coumarin Derivatives ◽  
Efficient Catalyst ◽  
Pechmann Condensation

scholarly journals Easy Access to Coumarin Derivatives Using Alumina Sulfuric Acid as an Efficient and Reusable Catalyst under Solvent-Free Conditions

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Ali Amoozadeh ◽  
Majid Ahmadzadeh ◽  
Eskandar Kolvari
Keyword(s):  
Sulfuric Acid ◽  
Condensation Reaction ◽  
Solvent Free ◽  
Easy Access ◽  
Reusable Catalyst ◽  
Coumarin Derivatives ◽  
Free Condition ◽  
Pechmann Condensation ◽  
Solvent Free Condition ◽  
Solvent Free Conditions

A new and efficient condition for the use of alumina sulfuric acid (ASA) as a heterogeneous catalyst in the Pechmann condensation reaction in solvent-free condition for the formation of coumarins has been reported.

Recent Advances in the Synthesis of Coumarin Derivatives via Pechmann Condensation

2016 ◽  
Vol 20 (7) ◽  
pp. 798-828 ◽  
Author(s):  
Abhay S. Zambare ◽  
Firoz A. Kalam Khan ◽  
Sureshchandra P. Zambare ◽  
Shantanu D. Shinde ◽  
Jaiprakash N. Sangshetti
Keyword(s):  
Coumarin Derivatives ◽  
Pechmann Condensation ◽  
Recent Advances

scholarly journals In(OTf)3 as a powerful and recyclable catalyst for Pechmann condensation without solvent

2014 ◽  
Vol 35 (7) ◽  
pp. 1206-1211 ◽  
Author(s):  
Bahador Karami ◽  
Mahtab Kiani ◽  
Mohsen Ahmad Hoseini
Keyword(s):  
Recyclable Catalyst ◽  
Pechmann Condensation

Mesoporous MFI Zeolite Nanosponge as a High-Performance Catalyst in the Pechmann Condensation Reaction

ACS Catalysis ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2596-2604 ◽  
Author(s):  
Jeong-Chul Kim ◽  
Ryong Ryoo ◽  
Maksym V. Opanasenko ◽  
Mariya V. Shamzhy ◽  
Jiří Čejka
Keyword(s):  
High Performance ◽  
Condensation Reaction ◽  
Mfi Zeolite ◽  
Pechmann Condensation

scholarly journals Synthesis, Characterization, and Applications of Coumarin Derivatives: A Short Review

2021 ◽  
Vol 7 (1) ◽  
pp. 62-68
Author(s):  
Juliana Jumal ◽  
Norhanis Sakinah
Keyword(s):  
Biological Activity ◽  
Nmr Spectroscopy ◽  
Broad Spectrum ◽  
Review Paper ◽  
Knoevenagel Condensation ◽  
Short Review ◽  
Synthesis And Characterization ◽  
Coumarin Derivatives ◽  
Pechmann Condensation ◽  
Perkin Reaction

Coumarin and its derivatives represent one of the most active curriculums of compound possessing a broad spectrum of biological activity along with other applications such as insecticide and fragrance. There are various methodologies developed for the synthesis of coumarins. Classical routes to coumarins include Pechmann condensation, Knoevenagel condensation, Perkin reaction, and Wittig condensation reactions. Researchers have carried out adjustments and improvements to increase the efficacy and overcome the limitations from the classical route. In this review outline, coumarin derivatives were characterized by using FTIR and Hydrogen NMR spectroscopy. This review paper focuses on various synthesis and characterization techniques to analyze coumarin derivatives and their potential application in various fields.

Ag/CdS Nanocomposite: An Efficient Recyclable Catalyst for the Synthesis of Novel 8-Aryl-8H-[1,3]dioxolo[4,5-g]chromene-6-carboxylic Acids under Mild Reaction Conditions

2018 ◽  
Vol 21 (5) ◽  
pp. 323-328 ◽  
Author(s):  
Shahrzad Abdolmohammadi ◽  
Seyed Reza Rasouli Nasrabadi ◽  
Ahmad Seif ◽  
Narges Elmi Fard
Keyword(s):  
Carboxylic Acids ◽  
Condensation Reaction ◽  
Sol Gel ◽  
Aqueous Media ◽  
Chemical Properties ◽  
Catalytic Amount ◽  
13C Nmr Spectroscopy ◽  
Biological Properties ◽  
Recyclable Catalyst ◽  
Reaction Conditions

Aim and Objective: Chromene derivatives are privileged heterocyclic systems that exhibit various types of biological properties such as antioxidant, anticancer, antimicrobial, hypotensive, and local anesthetic. Cadmium sulfide nanoparticles (CdS NPs) as an efficient heterogeneous catalyst is used in various organic transformations because of its certain unique and unusual physico-chemical properties. The effectiveness of catalytic activity of CdS NPs can be improved due to the combined effect of Ag particles. Results: Ag/CdS nanocomposite is a readily available, recyclable, and non-toxic catalyst used for the highly efficient synthesis of novel 8-aryl-8H-[1,3]dioxolo[4,5-g]chromrne-6-carboxylic acids. This reaction is conveniently performed under mild reaction conditions. All synthesized compounds were well characterized by their satisfactory elemental analyses, IR, 1H and 13C NMR spectroscopy. The synthesized catalyst was fully characterized by XRD, SEM, and EDX techniques. Materials and Methods: The present methodology focuses on the condensation reaction of arylmethylidenepyruvic acids with 3,4-methylenedioxyphenol, using a catalytic amount of Ag/CdS nanocomposite (15 mol%) in aqueous media at room temperature to afford 8-aryl-8H-[1,3]dioxolo [4,5-g]chromrne-6-carboxylic acids in high yields (90-97%) within short reaction times (2-4 h). The Ag/CdS nanocomposite was also prepared by an ultrasonic-assisted sol-gel method. Conclusion: In conclusion, we have successfully synthesized novel 8-aryl-8H-[1,3]dioxolo[4,5- g]chromrne-6-carboxylic acid derivatives by the Ag/CdS nanocomposite catalyzed cyclocondensation reaction of arylmethylidenepyruvic acids with 3,4-methylenedioxyphenol under mild reaction conditions. Environmentally benign procedure, high to excellent yields of products, simplicity of operation, and use of readily available and recyclable catalyst are the advantages of this new practical reaction.

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