Ph2P(BH3)Li: From Ditopicity to Dual Reactivity (Articolo in rivista)

Type
Label
  • Ph2P(BH3)Li: From Ditopicity to Dual Reactivity (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ja201760c (literal)
Alternative label
  • Barozzino Consiglio, Gabriella; Queval, Pierre; Harrison-Marchand, Anne; Mordini, Alessandro; Lohier, Jean-Francois; Delacroix, Olivier; Gaumont, Annie-Claude; Gerard, Helene; Maddaluno, Jacques; Oulyadi, Hassan (2011)
    Ph2P(BH3)Li: From Ditopicity to Dual Reactivity
    in Journal of the American Chemical Society (Print); American Chemical Society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Barozzino Consiglio, Gabriella; Queval, Pierre; Harrison-Marchand, Anne; Mordini, Alessandro; Lohier, Jean-Francois; Delacroix, Olivier; Gaumont, Annie-Claude; Gerard, Helene; Maddaluno, Jacques; Oulyadi, Hassan (literal)
Pagina inizio
  • 6472 (literal)
Pagina fine
  • 6480 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 133 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 16 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ENSICAEN, CNRS, Lab Chim Mol & Thioorgan, UMR 6507, F-14050 Caen, France Univ Caen, F-14050 Caen, France Univ Rouen, CNRS, UMR 6014, F-76821 Mont St Aignan, France Univ Rouen, FR 3038, F-76821 Mont St Aignan, France INSA, F-76821 Mont St Aignan, France Univ Florence, Dipartimento Chim U Schiff, ICCOM, I-50019 Florence, Italy Univ Paris 06, CNRS, LCT, UMR 7616, F-75252 Paris 05, France (literal)
Titolo
  • Ph2P(BH3)Li: From Ditopicity to Dual Reactivity (literal)
Abstract
  • A multinuclear NMR study shows that the deprotonation of diphenylphosphine-borane by n-BuLi in THF leads to a disolvated lithium phosphido-borane Ph2P(BH3)Li of which Li+ is connected to the hydrides on the boron and two THF molecules rather than to the phosphorus. This entity behaves as both a phosphination and a reducing agent, depending on the kinetic or thermodynamic control imposed to the reaction medium. Density functional theory computations show that H2P(BH3)Li exhibits a ditopic character (the lithium cation can be in the vicinity of the hydride or of the phosphorus). It explains its dual reactivity (H- or P-addition), both routes going through somewhat similar six-membered transition states with low activation barriers. (literal)
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