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Personne :
Boudreau, Josée

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Boudreau

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Josée

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Département de chimie, Faculté des sciences et génie, Université Laval

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ncf11861306

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Voici les éléments 1 - 2 sur 2
  • PublicationAccès libre
    Ambiphilic molecules for trapping reactive intermediates : interrupted Nazarov reaction of allenyl vinyl ketones with Me2PCH2AlMe2
    (RCS, 2012-09-28) Boudreau, Josée; Fontaine, Frédéric-Georges; Marx, Vanessa M.; Courtemanche, Marc-André; Burnell, Jean
    The addition of the ambiphilic molecule Me2AlCH2PMe2 (1) to the allenyl vinyl ketone 2 gave a trapped Nazarov reaction product. Under kinetic control, the addition of the phosphine was on the methylated carbon, contrary to expected steric and electronic considerations. Computational data pointed to hydrogen bonding between the phosphine and the methyl group guiding the regiochemistry of this reaction. This product rearranged to provide the expected, regioisomeric Nazarov product. With additional 1 this compound yielded a Michael-addition product via a retro-Nazarov process
  • PublicationAccès libre
    Reactivity of Lewis pairs (R2PCH2AlMe2)2 with carbon dioxide
    (2011-09-07) Boudreau, Josée; Fontaine, Frédéric-Georges; Courtemanche, Marc-André
    Species R2PCH2AlMe2 (R = Me, Ph) are stable Lewis adducts but still react with CO2 both in solution and in the solid state. The CO2 adducts undergo a rearrangement unprecedented for ambiphilic molecules to form aluminium carboxylates. A new spirocyclic compound was also obtained by double Lewis pair activation of CO2.