Environmentally Sustainable Magnetic Solid Sulfonic Acid: An Efficient and Reusable Catalyst for the Pechmann Reaction

Synlett ◽  
2015 ◽  
Vol 26 (09) ◽  
pp. 1263-1268 ◽  
Author(s):  
Barahman Movassagh ◽  
Akbar Mobaraki ◽  
Shahriar Yasham
Keyword(s):  
Sulfonic Acid ◽  
Reusable Catalyst ◽  
Environmentally Sustainable ◽  
Pechmann Reaction ◽  
Magnetic Solid

Cellulose sulfonic acid as a green, efficient, and reusable catalyst for Nazarov cyclization of unactivated dienones and pyrazoline synthesis

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104695-104707 ◽  
Author(s):  
Zahra Daneshfar ◽  
Ali Rostami
Keyword(s):  
Sulfonic Acid ◽  
Reusable Catalyst ◽  
Nazarov Cyclization

A high yielding and eco-friendly procedure for the preparation of cyclopentenoid and pyrazoline derivatives via cellulose sulfonic acid-mediated electrocyclization processes.

scholarly journals Solvent-free multicomponent synthesis of 2-arylpyridines using p-sulfonic acid calix[6]arene as a reusable catalyst

2015 ◽  
Vol 18 (4) ◽  
pp. 374-378 ◽  
Author(s):  
Ángel G. Sathicq ◽  
Natália A. Liberto ◽  
Sergio A. Fernándes ◽  
Gustavo P. Romanelli
Keyword(s):  
Sulfonic Acid ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Multicomponent Synthesis

Efficient Synthesis 2,3-Dihydroquinazolin-4(1H)-Ones Using Coconut Shell Char Sulfonic Acid as a Reusable Catalyst in Ethanol

2014 ◽  
Vol 989-994 ◽  
pp. 83-86
Author(s):  
Xuan Yan Liu ◽  
Zhi Gao Yang
Keyword(s):  
Sulfonic Acid ◽  
Biginelli Reaction ◽  
Acid Catalyst ◽  
Coconut Shell ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Three Component Reaction ◽  
High Yields

3,4-Dihydropyrimidin-2(1H)-ones derivatives were synthesized in moderate to high yields in one-pot three component reaction from the corresponding aldehydes, 1,3-dicarbonyl compounds and urea, Coconut shell char sulfonic acid (CSCSA) used as a reusable, and efficient catalyst. Compared to the classical acid catalyst, This new protocol for the Biginelli reaction includes the following important features: excellent yields, non-toxic, inexpensive and easily available reagent.

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