Femmes d'Amérique : 56 portraits de femmes qui ont fait les États-Unis

Autor: Françoise Froment

Tout au long de l'histoire, les Américaines ont contribué à leur manière, à la grande destinée du pays. Leur force pionnière a façonné la naissance de cette nation. Femmes fortes, marginales, courageuses, conquérantes, elles franchissent le

Identification of the monoanions and of their complexes with lithium salts possibly formed in solution during the alkylation of lithiated phenylacetonitrile dianions: Infrared spectroscopy and density functional theory calculations

Autor: Tekla Strzalko, Lya Wartski, Françoise Froment, J. Corset, Martine Castellà-Ventura

Publikováno v: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-...]
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2007, 68 (5), pp.1340-1346. ⟨10.1016/j.saa.2007.02.014⟩

The carbanionic species possibly formed during the first alkylation step of phenylacetonitrile lithiated anion by CH 3 I and PhCH 2 Cl in THF–hexane solution and their complexes with the lithium salt formed have been observed by infrared spectromet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb3097fb7cce173818917a8ad6f0836d
https://doi.org/10.1016/j.saa.2007.02.014

Formation mechanism of acetaldehyde lithium enolate by reaction ofn-butyllithium with tetrahydrofuran: infrared and Raman spectroscopy and density functional theory calculations

Autor: Françoise Froment, J. Corset, Tekla Strzalko, Martine Castellà-Ventura, Lya Wartski

Publikováno v: Journal of Raman Spectroscopy. 33:652-668

Depending on the reaction conditions, n-butyllithium (n-BuLi), as a base, may react both with the reactants and with the solvent. Thus, it has been shown that the n-BuLi dimer reacts with tetrahydrofuran (THF) to give acetaldehyde lithium enolate (CH

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::324b31a2292e36245a779b8692a68fcf
https://doi.org/10.1002/jrs.896

Study of the lithiated phenylacetonitrile monoanions and dianions formed according to the lithiated base used (LHMDS, LDA, or n-BuLi). 2. Alkylation and deuteriation mechanism study by vibrational and NMR spectroscopy and quantum chemistry calculations

Autor: L. Wartski, T. Strzalko, J. Corset, Martine Castellà-Ventura, Françoise Froment

Publikováno v: Journal of Organic Chemistry
Journal of Organic Chemistry, 2012, 77 (15), pp.6431-6442. ⟨10.1021/jo300758g⟩

Mechanisms of alkylation by PhCH(2)Cl or CH(3)I in THF and of deuteriation by DCl (4 N in D(2)O) in THF or THF-toluene of lithiated phenylacetonitrile monoanions and dianions obtained with LHMDS, LDA, or n-BuLi are studied by vibrational and NMR spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11aedee5271dc8ab695b7d75cda93be8
https://pubmed.ncbi.nlm.nih.gov/22742856

ChemInform Abstract: Effect of Aggregation of Nitrile Anions on the 1,2 versus 1,4 Regioselectivity Towards Benzylideneacetone

Autor: Françoise Froment, Jacqueline Seyden-Penne, Jacques Corset, L. Wartski, Tekla Strzalko

Publikováno v: ChemInform. 25

A direct evidence of the influence of aggregation state of lithiated phenylacetonitrile 1 on the 1,2 versus 1,4 regioselectivity towards benzylideneacetone 2 was established. Progressive addition of hexane to THF solutions raised the aggregates propo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eeabf889b6efc66ed87ca837453bee4c
https://doi.org/10.1002/chin.199442090