Titanium Oxide (TiO2) Catalysed One-Step Beckmann Rearrangement of Aldehydes and Ketones in Solvent Free Conditions

2003 ◽  
Vol 2003 (3) ◽  
pp. 176-178 ◽  
Author(s):  
Hashem Sharghi ◽  
Mona Hosseini Sarvari
Keyword(s):  
Titanium Oxide ◽  
Organic Solvents ◽  
Good Yield ◽  
Beckmann Rearrangement ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Aldehydes And Ketones ◽  
One Step

In the presence of titanium oxide (TiO2) and without any additional organic solvents, Beckmann rearrangement of several ketones and aldehydes was performed in good yield.

A Mesoporous ErIII-MCM-41 Catalyst for the Cyanosilylation of Aldehydes and Ketones under Solvent-free Conditions

ChemSusChem ◽  
2008 ◽  
Vol 1 (11) ◽  
pp. 916-919 ◽  
Author(s):  
Antonio Procopio ◽  
Gobind Das ◽  
Monica Nardi ◽  
Manuela Oliverio ◽  
Luigi Pasqua
Keyword(s):  
Solvent Free ◽  
Solvent Free Conditions ◽  
Aldehydes And Ketones ◽  
Mcm 41

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.

Calcium mediated efficient synthesis of N-arylamidines from organic nitriles and amines

2020 ◽  
Vol 18 (22) ◽  
pp. 4231-4237
Author(s):  
Indrani Banerjee ◽  
Shweta Sagar ◽  
Tarun K. Panda
Keyword(s):  
Solvent Free ◽  
Efficient Synthesis ◽  
Facile Synthesis ◽  
Solvent Free Conditions ◽  
One Step

An efficient one-step methodology for the facile synthesis of N-arylamidines from organic nitriles and amines by using calcium bis(hexamethyldisilazide) as a competent catalyst under solvent-free conditions is reported.

ChemInform Abstract: A Regiospecific Three-Component One-Step Cyclocondensation to 6-Cyano-5,8-dihydropyrido[2,3-d]pyrimidin-4(3H)-ones Using Microwaves under Solvent-Free Conditions.

ChemInform ◽  
2010 ◽  
Vol 33 (5) ◽  
pp. no-no
Author(s):  
Jairo Quiroga ◽  
Carlos Cisneros ◽  
Braulio Insuasty ◽  
Rodrigo Abonia ◽  
Manuel Nogueras ◽  
...  
Keyword(s):  
Solvent Free ◽  
Solvent Free Conditions ◽  
One Step
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