Search Results - "Romanelli, G P"

Supported trifluoromethanesulfonic acid as catalyst in the synthesis of flavone and chromone derivatives by Bennardi, D.O., Romanelli, G.P., Autino, J.C., Pizzio, L.R.

“…Solid acid catalysts based on trifluoromethanesulfonic acid (triflic acid, TFMS) were synthesized using titania with different textural properties as support,…”
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Chemoselective Reductive Heterocyclization by Controlling the Binomial Architecture of Metal Particles and Acid–Base Properties of the Support by Marti, L, Sanchez, L. M, Climent, Maria J, Corma, A, Iborra, S, Romanelli, G. P, Concepcion, P

“…2,1-Benzisoxazoles have been selectively synthesized through reductive heterocyclization of 2-nitroacylarenes using Pt-supported nanoparticles. The reaction…”
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A solvent-free synthesis of coumarins using a Wells–Dawson heteropolyacid as catalyst by Romanelli, G.P., Bennardi, D., Ruiz, D.M., Baronetti, G., Thomas, H.J., Autino, J.C.

“…Seventeen examples are resolved, most of them in good to excellent yields, using the cheap WD catalyst. Substituted coumarins are synthesized from phenols and…”
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A Simple Method for N-Phenoxyethylation of Anilines by Romanelli, G. P., Jios, J. L., Guaymas, O., Piovoso, R., Autino, J. C.

“…We wanted to search for new reaction conditions to prepare the title compounds, to be checked later in novel syntheses of heterocyclic compounds. To the best…”
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Biological activity of three alkyl cinnamates on young larvae of Tuta absoluta by Perez, M E, Haramboure, M, Mirande, L, Romanelli, G P, Schneider, M I, Autino, J C

“…The "tomato moth," Tuto absoluta (Meyrick) (Lepidoptera: Gelechiidae), is a neotropical oligophagous insect considered a key pest of tomato crops. It was…”
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3-Aryloxypropiononitriles Intermediates: Crystal and Molecular Structure of 2- and 4-(2-Bromoethoxy)diphenylmethanes by Ellena, J., Ellena, J., Punte, G., Autino, J. C., Romanelli, G. P., Goeta, A. E.

“…The crystal structure of 2‐ and 4‐(2‐bromoethoxy)diphenylmethanes (I and II respectively), intermediates in a novel synthesis of substituted…”
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Zeolitized volcanic ashes as supports for Anderson heteropolycompound catalysts. Application in the oxidation of diphenyl sulfide by Muñoz, M., Pereyra, A.M., Gonzalez, M.R., Monzón, J.D., Romanelli, G.P., Cabello, C., Basaldella, E.I.

“…This work proposes a new set of active catalysts in eco-compatible processes for the selective oxidation of aromatic sulfides. The applied methodology consists…”
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Efficient Tetrahydropyranylation of Phenols and Alcohols Catalyzed by Supported Mo and W Keggin Heteropolyacids by Romanelli, G. P., Vázquez, P. G., Pizzio, L. R., Cáceres, C. V., Blanco, M. N., Autino, J. C.

“…The protection of phenols as tetrahydropyranyl acetals is studied using supported Keggin heteropolyacids as catalysts, specifically molybdophosphoric or…”
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Catalysts based on nickel salt heteropolytungstates for selective oxidation of diphenyl sulfide by Muñoz, Mercedes, Greber, Matthieu, Tayeb, Karima Ben, Lamonier, Carole, Cabello, Carmen I., Romanelli, Gustavo P.

“…Nickel salts of Keggin heteropolytungstates with the general formula Ni (A = Si/P) were synthesized and studied as bulk catalytic materials or supported ones…”
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Relationships between Kováts retention indices and molecular descriptors of 1-(2-hydroxy)-3-arylpropane-1,3-diones by Romanelli, G P, Jios, J L, Autino, J C, Cafferata, L F, Castro, E A

“…Experimental and theoretical results for retention index of a set of 20 beta-diketones are given. The quantitative structure-chromatographic retention…”
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Trifluoromethanesulfonic acid supported on carbon used as catalysts in the synthesis of flavones and chromones by Bennardi, D.O., Romanelli, G.P., Autino, J.C., Pizzio, L.R.

“…Solid acid catalysts based on trifluoromethanesulfonic acid (TFMS) were synthesized using two different activated carbons as supports. They were characterized…”
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QSAR analysis on Spodoptera litura antifeedant activities for flavone derivatives by Duchowicz, Pablo R., Goodarzi, Mohammad, Ocsachoque, Marco A., Romanelli, Gustavo P., Ortiz, Erlinda del V., Autino, Juan. C., Bennardi, Daniel O., Ruiz, Diego M., Castro, Eduardo A.

“…We establish useful models that relate experimentally measured biological activities of compounds to their molecular structure. The pED 50 feeding inhibition…”
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NMR Study of Substituted 1-Bromo-2-aryloxyethanes and Monosubstituted Xanthones by Pomilio, A. B., Tettamanzi, M. C., Romanelli, G. P., Autino, J. C., Vitale, A. A.

“…Sa151H and 13C NMR spectra were measured for a series of synthetic substituted 1‐bromo‐2‐aryloxyethanes and monosubstituted xanthones. Substituent effects were…”
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A Fast and Efficient Deprotection of Aldehydes from Acylals Using a Wells-Dawson Heteropolyacid Catalyst (H6P2W18O62 · 24H2O) by Romanelli, G. P., Autino, J. C., Baronetti, G., Thomas, H. J.

“…A rapid and efficient method for the deprotection of aldehyde 1,1-diacetates is described. The reaction was carried out using a Wells-Dawson type catalyst…”
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An improved QSAR study of toxicity of saturated alcohols by Romanelli, G.P., Cafferata, L.F.R., Castro, E.A.

“…We apply an improved QSAR method to study the toxicity of alcohols by resorting to the employment of the following properties: surface area, volume, log P,…”
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Efficient method for tetrahydropyranylation/depyranylation of phenols and alcohols using a solid acid catalyst with Wells–Dawson structure by Romanelli, Gustavo P., Baronetti, Graciela, Thomas, Horacio J., Autino, Juan C.

“…A simple and efficient procedure to form 2-tetrahydropyranyl acetals of phenols and alcohols is reported. Wells–Dawson heteropolyacid catalyst is used both in…”
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Tungstosilicate salts as catalysts in phenol tetrahydropyranylation and depyranylation by Romanelli, Gustavo P., Autino, Juan Carlos, Blanco, Mirta N., Pizzio, Luis R.

“…The catalytic behavior of water-insoluble cesium or rubidium tungstosilicates was studied in phenol tetrahydropyranylation and depyranylation reactions. The…”
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A Novel Domino Reaction: Cyclization of Alkynyl Sulfides by Reaction with IPy2BF4 by Barluenga, José, Romanelli, Gustavo P., Alvarez-García, Lorenzo J., Llorente, Isidro, González, José M., García-Rodríguez, Esther, García-Granda, Santiago

“…Formation of polycyclic structures within a few minutes: The intramolecular cyclization of diynes, activated by a benzenesulfenyl substituent, upon reaction…”
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Application of Quantitative Structure-Retention Relationships (QSRR) to a set of organic bromo and nitrile derivatives by AUTINO, Juan Carlos, CASTRO, Eduardo A, ROMANELLI, Gustavo P

“…The retention times are studied for two sets of 1-bromo-2-aryiloxyetanes and 3- aryloxypropiononitriles derivatives by means of Quantitative…”
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Multinuclear (1H, 13C and 15N) Magnetic Resonance Spectroscopy and Substituent Effects on N-Phenoxyethylanilines by Jios, Jorge L., Romanelli, Gustavo P., Autino, Juan C., Magiera, Damian, Duddeck, Helmut

“…H, C and N NMR spectra of twenty substituted N-phenoxyethylanilines 1-20 were completely and unambiguously assigned using a combination of both homo- and…”
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