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Significant effects of the anion on the catalytic behaviour of sulfonic acid-functionalized ionic liquids in transesterification reactions – A combined electrochemical/catalytic study
(Elsevier, 2021-08)
This work studies the strong influence of the counterion on the performance of ionic liquids (ILs) with sulfonic acid-functionalized butyl-imidazolic bases as homogeneous acid catalysts. Through a voltammetric analysis, ...
Microwave Assisted Synthesis of ethyl-quinolon-4-one-3-carboxylates and Hydrolysis to quinolon-4-one-3-carboxylic Acids
(Bentham Science Publishers, 2014-05)
A fast and efficient microwave assisted synthesis of several ethyl-quinolon-4-one-3-carboxylates and quinolon- 4-one-3-carboxylic acids has been developed. The 3-carboethoxy quinolones are easily obtained in a one-pot ...
Gas-phase conversion of 1,3-butanediol on single acid-base and Cu-promoted oxides
(Elsevier Science, 2013-09)
The gas-phase conversion of 1,3-diols was studied on catalysts containing different active sites and using 1,3-butanediol as a model molecule. Transformation of the diol primary and/or secondary OH groups by dehydration ...
Synthesis of Edible Vegetable Oils Enriched with Healthy 1,3-Diglycerides Using Crude Glycerol and Homogeneous/Heterogeneous Catalysis
(Springer, 2020-01)
Commercial edible vegetable oils in which part of their triglycerides are substituted with 1,3-diglycerides are healthier for human consumption than the original oils. This is because the human metabolism of 1,3-diglycerides ...
Alternative raw materials to produce biodiesel through alkaline heterogeneous catalysis
(MDPI AG, 2019-08-15)
Recent research focuses on new biodiesel production and purification technologies that seek a carbon neutral footprint, as well as cheap, renewable and abundant raw materials that do not compete with the demand for food. ...
Role of acystine-based Gemini surfactant ligand in the synthesis of catalytic active silver nanoparticles
(Elsevier Science, 2019-06)
We report the synthesis in water of colloidal silver nanoparticles (AgNP) using a Gemini lipoamino acid surfactant derived from cysteine as a capping agent. The Gemini surfactant interacts with the metal surface mainly in ...
Role of a cystine-based Gemini surfactant ligand in the synthesis of catalytic active silver nanoparticles
(Elsevier Science, 2019-06)
We report the synthesis in water of colloidal silver nanoparticles (AgNP) using a Gemini lipoamino acid surfactant derived from cysteine as a capping agent. The Gemini surfactant interacts with the metal surface mainly in ...
One-step methyl isobutyl ketone (MIBK) synthesis from 2-propanol: Catalyst and reaction condition optimization
(Elsevier Science, 2007-02)
A gas-phase process for methyl isobutyl ketone (MIBK) synthesis from 2-propanol in one-pot is studied as an alternative to the conventional technology for producing MIBK from acetone (DMK). Bifunctional copper/acid-base ...
The effect of mesoporosity in the reaction of vinyl acetate and isoamyl alcohol catalyzed by H-ZSM-5 zeolites based on natural Perlite
(Elsevier Science, 2020-07-25)
Diverse ZSM-5 zeolites having a dual porosity and different acidic properties have been prepared using natural Perlite as source of SiO2 and Al2O3. Two traditional methodologies were selected to generate hierarchical ...
Alkaline phosphatases: In silico study on the catalytic effect of conserved active site residues using human placental alkaline phosphatase (plap) as a model protein
(American Chemical Society, 2020-12)
The metalloenzymes from the alkaline phosphatase (AP) superfamily catalyze the hydrolysis and transphosphorylation of phosphate monoesters. The role of several amino acids highly conserved in the active site of this family ...