Easy access to quinoxaline derivatives using alumina as an effective and reusable catalyst under solvent-free conditions

2011 ◽  
Vol 394 (1-2) ◽  
pp. 48-51 ◽  
Author(s):  
Maasoumeh Jafarpour ◽  
Abdolreza Rezaeifard ◽  
Maryam Danehchin
Keyword(s):  
Solvent Free ◽  
Easy Access ◽  
Reusable Catalyst ◽  
Solvent Free Conditions ◽  
Quinoxaline Derivatives

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.

scholarly journals Biocompatible ionic liquid [Betaine][H2PO4] as a reusable catalyst for the substitution of xanthen-9-ol under solvent-free conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (52) ◽  
pp. 31662-31669
Author(s):  
Anlian Zhu ◽  
Tong Wang ◽  
Wanlu Feng ◽  
Jianji Wang ◽  
Lingjun Li
Keyword(s):  
Ionic Liquid ◽  
Substitution Reaction ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Solvent Free Conditions ◽  
Direct Substitution

A cheap and biocompatible ionic liquid [Betaine][H2PO4] was found to be an efficient and reusable catalyst for the direct substitution reaction of xanthen-9-ol under solvent-free conditions.

Environmentally friendly cyclotrimerization of substituted acetophenones catalyzed by a new nanocomposite of γ-Al2O3 nanoparticles decorated with H5PW10V2O40

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55319-55326 ◽  
Author(s):  
Reza Tayebee ◽  
Kokab Savoji ◽  
Maryam Kargar Razi ◽  
Behrooz Maleki
Keyword(s):  
Environmentally Friendly ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Al2o3 Nanoparticles ◽  
Solvent Free Conditions

An efficient protocol for the synthesis of C3-symmetrical 1,3,5-triarylbenzenes under solvent-free conditions. γ-Al2O3/H5PW10V2O40 nanocomposite is introduced as a highly reusable catalyst.

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