F
Francesca Focante
Researcher at University of Bologna
Publications - 9
Citations - 424
Francesca Focante is an academic researcher from University of Bologna. The author has contributed to research in topics: Reactivity (chemistry) & Borane. The author has an hindex of 7, co-authored 9 publications receiving 383 citations. Previous affiliations of Francesca Focante include University of Milan.
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Journal ArticleDOI
Complexes of tris(pentafluorophenyl)boron with nitrogen-containing compounds: Synthesis, reactivity and metallocene activation
TL;DR: The strong Lewis acid tris(pentafluorophenyl)boron, B(C6F5)3, reacts with several nitrogen-containing Lewis bases (nitriles, amines, imines, pyridines, etc.) and also with non-basic substrates (such as pyrroles and indoles) producing in both cases the B N coordination adduct as mentioned in this paper.
Journal ArticleDOI
Oxygen-bridged borate anions from tris(pentafluorophenyl)borane : Synthesis, NMR characterization, and reactivity
Alessia Di Saverio,Francesca Focante,Isabella Camurati,Luigi Dr. Resconi,Tiziana Beringhelli,Giuseppe D'Alfonso,Daniela Donghi,Daniela Maggioni,Pierluigi Mercandelli,Angelo Sironi +9 more
TL;DR: High mobility of the five aryl rings, at variance with the more crowded anion 2, was revealed, and 2D NMR correlation experiments showed that in CD2Cl2 the two anions form tight ion pairs with [NHEt3]+, in which the NH proton establishes a conventional (BO)...HN) or an unconventional (BH...HN), respectively, hydrogen bond with the anion.
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Synthesis and reactivity of (C6F5)3B-N-Heterocycle complexes. 1. Generation of highly acidic sp3 carbons in pyrroles and indoles
Simona Guidotti,Isabella Camurati,Francesca Focante,Luca Angellini,Gilberto Moscardi,Luigi Resconi,Rino Leardini,Daniele Nanni,Pierluigi Mercandelli,Angelo Sironi,Tiziana Beringhelli,Daniela Maggioni +11 more
TL;DR: The acidity of the sp(3) carbons in these complexes is shown by their ability to protonate NEt(3), with formation of pyrrolyl- and indolyl-borate ammonium salts.
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Synthesis and Reactivity of N-Heterocycle-B(C6F5)3 Complexes. 3. Generation of N-Methylpyrrol-2-yl and N-Methylindol-2-yl Borate Zwitterions with Acidic sp3 Carbons
Francesca Focante,Isabella Maria Vittoria Camurati,Daniele Nanni,Rino Leardini,Luigi Resconi +4 more
TL;DR: In this paper, the rotational barriers of N-methylpyrrole and Nmethylindole with B(C6F5)3 were calculated from 1H NMR experimental data.
Journal ArticleDOI
Synthesis and reactivity of N-heterocycle-B(C6F5)3 complexes. 4. Competition between pyridine- and pyrrole-type substrates toward B(C6F5)3: structure and dynamics of 7-B(C6F5)3-7-azaindole and [7-Azaindolium]+[HOB(C6F5)3]-.
Francesca Focante,Isabella Camurati,Luigi Dr. Resconi,S. Guidotti,Tiziana Beringhelli,Giuseppe D'Alfonso,Daniela Donghi,Daniela Maggioni,Pierluigi Mercandelli,Angelo Sironi +9 more
TL;DR: The molecular structures of compounds 4 and 5 have been determined both in the solid state and in solution and compared to the structures of other (C6F5)3B-N-heterocycle complexes and the nature of the intramolecular interactions that result in such energetic barriers is discussed.