A5004770582- Chemical Synthesis and Reactions
- Multicomponent Synthesis of Heterocycles
- Polyoxometalates: Synthesis and Applications
- Catalysis for Biomass Conversion
- Synthesis of Organic Compounds
- Mesoporous Materials and Catalysis
- Synthesis and biological activity
- Chemical Synthesis and Analysis
- Sulfur-Based Synthesis Techniques
- Layered Double Hydroxides Synthesis and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- Synthesis and Biological Evaluation
- Catalysis and Hydrodesulfurization Studies
- biodegradable polymer synthesis and properties
- Carbon dioxide utilization in catalysis
- Microwave-Assisted Synthesis and Applications
- Chemistry and Chemical Engineering
- Crystallization and Solubility Studies
- Carbohydrate Chemistry and Synthesis
- Enzyme Catalysis and Immobilization
- X-ray Diffraction in Crystallography
- Synthetic Organic Chemistry Methods
- Nanomaterials for catalytic reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Oxidative Organic Chemistry Reactions
Universidad Nacional de La Plata
2015-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
2012-2021
Centro de Investigación y Desarrollo
2014-2019
University of Rostock
2016
Consorzio Interuniversitario Nazionale La Chimica Per L'Ambiente
2005
Ca' Foscari University of Venice
2005
Underutilized lignocellulosic biomass, such as aquatic plants, faces sustainability challenges due to energy-intensive treatments. This study investigates the use of Bacillus sp. for biological pretreatment water hyacinth (Eichhornia crassipes) aiming improve efficiency alkyl levulinate (AL) production, which are valuable compounds used fuel additives, solvents, and plasticizers. The with resulted in stable bacterial growth a significant increase cellulose content (up 27%) compared untreated...
A Preyssler-type heteropolyacid supported on silica, synthesized and characterized by FTIR, was tested for levulinic acid (LA) esterification with n-butanol under microwave-assisted batch reaction conditions. The optimal conditions were found to be 40 mg of catalyst, a 5:1 n-butanol/LA molar ratio at 160 °C 3 h, resulting in 77% conversion 100% selectivity. catalytic effect observed low temperatures (100 °C), the microwave high (160 °C). Yield levulinate improved (82%) CuSO4 as dehydrating...
Abstract Hydrotalcite materials (HTs) were synthesized by a facile and swift combined mechanochemistry/coprecipitation approach, their catalytic activity was evaluated compared with conventionally hydrotalcites (co-precipitation method) in the Knoevenagel condensation between furfural ethyl cyanoacetate/malononitrile. Characterization results clearly demonstrate that proposed mechanochemical/coprecipitation approach provides an improvement crystallinity, morphology, tunable basicity,...
Abstract The Biginelli reaction is performed in an efficient, simple, solvent‐free procedure, using a small amount of H6P2W18O62 · 24H2O, reusable heteropolyacid catalyst with Wells–Dawson structure. Both aromatic and aliphatic aldehydes, different β‐dicarbonyl compounds urea or thiourea, were used as starting materials. Seventeen examples dihydropyrimidinones dihydropyrimidinethiones prepared by heating the reactants either refluxing acetonitrile absence solvent. Operational simplicity, use...
A series of trifluoromethylated hexahydropyrimidines was synthesized using Preyssler heteropoly acid H<sub>14</sub>NaP<sub>5</sub>W<sub>29</sub>MoO<sub>110</sub> encapsulated in a silica framework as the catalyst under solvent-free conditions. This synthesis requires short reaction times (1.5 h) and 80 °C conditions to obtain good excellent yields 18 hexahydropyrimidine derivatives. embedded matrix, unlike bulk or supported on silica, is insoluble polar media such acetone, ethanol, methanol,...
Abstract The synthesis of 5,5′‐[oxybis(methylene)]bis‐2‐furfural (OBMF) from 5‐hydroxymethylfurfural (5‐HMF) was studied using bulk and alumina‐supported Preyssler heteropolyacids (HPAs). formation OBMF related to the amount Brønsted acid sites, lowest yield obtained with supported HPAs. However, Lewis acidity HPA on Al 2 O 3 favored 2,5‐dimethylfurane. effects solvent, catalyst loading, temperature, reaction time selectivity 5‐HMF were optimize production HPAs; a 84 % at 5 h 343 K. These...