Microwave-assisted green synthesis of levulinate esters as biofuel precursors using calix[4]arene as an organocatalyst under solvent-free conditions

2021 ◽  
Vol 5 (1) ◽  
pp. 108-111
Author(s):  
Gabriel Abranches Dias Castro ◽  
Sergio Antonio Fernandes
Keyword(s):  
Green Synthesis ◽  
Levulinic Acid ◽  
Acid Catalysis ◽  
Value Added ◽  
Solvent Free ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Levulinic acid, one of the top 12 value-added chemicals, can be obtained by the transformation of biomass by acid catalysis.

A novel microwave-assisted green synthesis of condensed 2-substituted-pyrimidin-4(3H)-ones under solvent-free conditions

2009 ◽  
Vol 46 (2) ◽  
pp. 178-185 ◽  
Author(s):  
Kishor S. Jain ◽  
Jitender B. Bariwal ◽  
Manisha S. Phoujdar ◽  
Madhuri A. Nagras ◽  
Rakesh D. Amrutkar ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Solvent Free ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Microwave-Assisted Efficient, One-Pot, Three-Component Synthesis of 3,5-Disubstituted 1,2,4-Oxadiazoles under Solvent-Free Conditions.

ChemInform ◽  
2006 ◽  
Vol 37 (32) ◽  
Author(s):  
Mehdi Adib ◽  
Amin Haghighat Jahromi ◽  
Narjes Tavoosi ◽  
Mohammad Mahdavi ◽  
Hamid Reza Bijanzadeh
Keyword(s):  
Solvent Free ◽  
One Pot ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Solid-state regioselective nitration of activated hydroxyaromatics and hydroxycoumarins with cerium (IV) ammonium nitrate

2005 ◽  
Vol 2005 (11) ◽  
pp. 733-735 ◽  
Author(s):  
Nemai C. Ganguly ◽  
Sanjoy Dutta ◽  
Mrityunjoy Datta ◽  
Prithwiraj De
Keyword(s):  
Solid State ◽  
Ammonium Nitrate ◽  
High Efficiency ◽  
Solvent Free ◽  
High Melting ◽  
Microwave Assisted ◽  
Solvent Free Conditions ◽  
High Yields ◽  
Regioselective Nitration ◽  
Cerium Iv Ammonium Nitrate

Predominant ortho-selective mononitration of low-melting and liquid phenols and hydroxycoumarins in moderate to high yields has been accomplished upon grinding with solid cerium (IV) ammonium nitrate (CAN). Microwave-assisted expeditious CAN-mediated nitration of relatively high melting phenols and hydroxycoumarins with high efficiency and selectively under solvent-free conditions has been also developed to address the problems of sluggishness and low yield for these reluctant substrates.

Microwave-assisted synthesis of quinolones and 4H-1,4-benzo thiazine 1,1-dioxides

2005 ◽  
Vol 2005 (1) ◽  
pp. 27-28 ◽  
Author(s):  
Jaime Charris ◽  
Arthur Barazarte ◽  
José Domínguez ◽  
Neira Gamboa
Keyword(s):  
Microwave Irradiation ◽  
Rapid Method ◽  
Solvent Free ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Solvent Free Conditions

A rapid method for the preparation of N-aryl-2-methylthio-4-oxo-1,4-dihydro quinoline-3-carbonitriles (2a–e) and N-aryl-3-methylthio-4H-1,4-benzothiazine-2-carbonitrile 1,1-dioxides (2f–o) is reported. The cyclization is accelerated by microwave irradiation under solvent free conditions in the presence of K2CO3.

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