P2O5–SiO2 as an efficient heterogeneous catalyst for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles under conventional and ultrasound irradiation conditions

2012 ◽  
Vol 144 (5) ◽  
pp. 725-728 ◽  
Author(s):  
Davood Habibi ◽  
Mahmoud Nasrollahzadeh ◽  
Leila Mehrabi ◽  
Samaneh Mostafaee
Keyword(s):  
Heterogeneous Catalyst ◽  
Ultrasound Irradiation ◽  
Solvent Free ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

ChemInform Abstract: Fe-Al/Clay as an Efficient Heterogeneous Catalyst for Solvent-Free Synthesis of 3,4-Dihydropyrimidones.

ChemInform ◽  
2013 ◽  
Vol 44 (44) ◽  
pp. no-no
Author(s):  
Bashir A. Dar ◽  
Praveen Patidar ◽  
Sunil Kumar ◽  
Mohammad Arif Wagay ◽  
Akshay K. Sahoo ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

Expanded perlite: an inexpensive natural efficient heterogeneous catalyst for the green and highly accelerated solvent-free synthesis of 5-substituted-1H-tetrazoles using [bmim]N3 and nitriles

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104087-104094 ◽  
Author(s):  
Roya Jahanshahi ◽  
Batool Akhlaghinia
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Expanded Perlite ◽  
Substituted 1 ◽  
Accelerated Protocol ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

A versatile, green and highly accelerated protocol for preparing 5-substituted-1H-tetrazoles is reported using expanded perlite as a heterogeneous catalyst.

scholarly journals Silica Sulfuric Acid as an Efficient Heterogeneous Catalyst for the Solvent-Free Synthesis of 1-Substituted 1H-1,2,3,4-Tetrazoles

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Davood Habibi ◽  
Hiva Nabavi ◽  
Mahmoud Nasrollahzadeh
Keyword(s):  
Sulfuric Acid ◽  
Heterogeneous Catalyst ◽  
Sodium Azide ◽  
Solvent Free ◽  
Triethyl Orthoformate ◽  
Primary Amines ◽  
Silica Sulfuric Acid ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

Silica sulfuric acid (SSA) was found to be an efficient heterogeneous catalyst for the synthesis of 1-substituted 1H-1,2,3,4-tetrazoles from the reaction of primary amines with triethyl orthoformate and sodium azide under thermal and solvent-free conditions.

scholarly journals Synthesis of polyhydroquinolines and propargylamines through one-pot multicomponent reactions using an acidic ionic liquid immobilized onto magnetic Fe3O4 as an efficient heterogeneous catalyst under solvent-free sonication

RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 25358-25363 ◽  
Author(s):  
Hai Truong Nguyen ◽  
Vy Anh Truong ◽  
Phuong Hoang Tran
Keyword(s):  
Ionic Liquid ◽  
Heterogeneous Catalyst ◽  
Lewis Acid ◽  
Multicomponent Reactions ◽  
Ultrasound Irradiation ◽  
Solvent Free ◽  
One Pot ◽  
Acidic Ionic Liquid ◽  
Magnetic Fe3o4 ◽  
Efficient Heterogeneous Catalyst

A nano-sized Fe3O4-supported Lewis acid ionic liquid catalyst for the synthesis of polyhydroquinolines and propargylamines under ultrasound irradiation has been developed.

scholarly journals Fe–Al/clay as an efficient heterogeneous catalyst for solvent-free synthesis of 3, 4-dihydropyrimidones

2013 ◽  
Vol 125 (3) ◽  
pp. 545-553 ◽  
Author(s):  
BASHIR A DAR ◽  
PRAVEEN PATIDAR ◽  
SUNIL KUMAR ◽  
MOHAMMAD ARIF WAGAY ◽  
AKSHAY K SAHOO ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

Niobic Acid as a Recyclable Heterogeneous Catalyst for the Solvent-Free Synthesis of Substituted Benzimidazoles

2013 ◽  
Vol 1 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Beatriz Vieira ◽  
Angelita Barcellos ◽  
Ricardo Schumacher ◽  
Eder Lenardao ◽  
Diego Alves
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Niobic Acid ◽  
Recyclable Heterogeneous Catalyst ◽  
Solvent Free Synthesis
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