Výsledky vyhledávání - "Vitalba Pace"

On the characterization of some [bmim][X]/co-solvent binary mixtures: a multidisciplinary approach by using kinetic, spectrophotometric and conductometric investigations

Autor: Francesca D'Anna, Vincenzo Frenna, Sandra La Marca, Renato Noto, Vitalba Pace, Domenico Spinelli

Publikováno v: Tetrahedron. 64:672-680

In order to study the intrinsic characteristics and to evaluate the structural variations determined by the addition of a co-solvent to 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF 4 ]) we examined the behaviour of some probes in [bmim][B

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58385ced38c302e6075299b49227f75e
https://doi.org/10.1016/j.tet.2007.11.033

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Effect of ionic liquid organizing ability and amine structure on the rate and mechanism of base induced elimination of 1,1,1-tribromo-2,2-bis(phenyl-substituted)ethanes

Autor: Vitalba Pace, Francesca D'Anna, Vincenzo Frenna, Renato Noto

Publikováno v: Tetrahedron. 62:1690-1698

The kinetics of the elimination reaction of 1,1,1-tribromo-2,2-bis(phenyl-substituted)ethanes into the corresponding 1,1-dibromo-2,2-bis(phenyl-substituted)ethenes induced by amines were studied in three room temperature ionic liquids ([BMIM][BF 4 ],

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7d119a8997884c6feea34520c9be375
https://doi.org/10.1016/j.tet.2005.11.061

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On the Dichotomic Behavior of the Z-2,4-Dinitrophenylhydrazone of 5-Amino-3-benzoyl-1,2,4-oxadiazole with Acids in Toluene and in Dioxane/Water: Rearrangement versus Hydrolysis

Autor: Vitalba Pace, Stefano Morganti, G. Macaluso, Raffaella Spisani, V. Frenna, Domenico Spinelli, Francesca D'Anna, Patrizia Nitti

Publikováno v: The Journal of Organic Chemistry. 69:8718-8722

The mononuclear rearrangement (MRH) of the Z-2,4-dinitrophenylhydrazone (4a) and of the Z-phenylhydrazone (4b) of 5-amino-3-benzoyl-1,2,4-oxadiazole into the relevant triazoles 5a and 5b in toluene has been quantitatively investigated in the presence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef1c091418d95385b134305e83a17ba1
https://doi.org/10.1021/jo048803i

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Room temperature ionic liquids structure and its effect on the mononuclear rearrangement of heterocycles: an approach using thermodynamic parameters

Autor: Renato Noto, Domenico Spinelli, Vincenzo Frenna, Francesca D'Anna, Vitalba Pace

Publikováno v: The Journal of organic chemistry. 71(26)

The kinetics of the rearrangement of the Z-phenylhydrazone of 3-benzoyl-5-phenyl-1,2,4-oxadiazole (1) into the relevant 4-benzoylamino-2,5-diphenyl-1,2,3-triazole (2) induced by amines have been studied in five room-temperature ionic liquids (RTILs)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a28d4c8c54bbae888475b87a4f03b35
https://pubmed.ncbi.nlm.nih.gov/17168580

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Study of aromatic nucleophilic substitution with amines on nitrothiophenes in room-temperature ionic liquids: are the different effects on the behavior of para-like and ortho-like isomers on going from conventional solvents to room-temperature ionic liquids related to solvation effects?

Autor: Domenico Spinelli, Francesca D'Anna, Vincenzo Frenna, Renato Noto, Vitalba Pace

Publikováno v: The Journal of organic chemistry. 71(14)

The kinetics of the nucleophilic aromatic substitution of some 2-L-5-nitrothiophenes (para-like isomers) with three different amines (pyrrolidine, piperidine, and morpholine) were studied in three room-temperature ionic liquids ([bmim][BF4], [bmim][P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::953141c79b8c4de1eb500f035d3741c7
https://pubmed.ncbi.nlm.nih.gov/16808500

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On the application of the extended Fujita-Nishioka equation to polysubstitued system. A kinetic study of the rearrangement of several poly-substitued Z-arylhydrazones of 3-benzoyl-5-phenyl-1,2,4-oxadiazole into 2-aryl-4-benzoylamino-5-phenyl-1,2,3-triazoles in dioxane/water

Autor: Raffaella Spisani, Vincenzo Frenna, Susanna Guernelli, Fiammetta Ferroni, Camilla Zaira Lanza, Francesca D'Anna, Giovanni Petrillo, Gabriella Macaluso, Vitalba Pace, Domenico Spinelli

The rearrangement rates of several di-, tri-, tetra- or penta-substituted Z -arylhydrazones of 3-benzoyl-5-phenyl-1,2,4-oxadiazole ( 1a – 18a ) into the relevant 2-aryl-4-benzoylamino-5-phenyl-1,2,3-triazoles ( 1b – 18b ) have been determined in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e595c55e60c493e8549db988c78ae0bb
http://hdl.handle.net/11585/2552

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Can the absence of solvation of neutral reagents by ionic liquids be responsible for the high reactivity in base-assisted intramolecular nucleophilic substitutions in these solvents?

Autor: Domenico Spinelli, Renato Noto, Francesca D'Anna, Vitalba Pace, Vincenzo Frenna

[reaction: see text] The kinetics of the rearrangement of the Z-phenylhydrazone of 3-benzoyl-5-phenyl-1,2,4-oxadiazole (1a) into the relevant 4-benzoylamino-2,5-diphenyl-1,2,3-triazole (2a) induced by amines have been studied in two room-temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffe808e073f9feb8571f5e93947bf744
http://hdl.handle.net/11585/2553

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