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UID:69dce7c143cb8
DTSTAMP:20260413T085529
DTSTART:20160406T110000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20160406T123000
URL:https://murmitoyen.com/events/vanille/udem/detail/671470
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Conférence du Professeur Jeffrey Johnston (Vanderbilt)
DESCRIPTION:Titre : Minimalism in Organocatalysis: New Enantioselective Rea
 ctions Enabled by Bifunctional BrønstedAcid/Base Catalysts.Endroit : Pavi
 llon Roger-Gaudry\, salle G-615 à 11 h.Hôte : Professeure Hélène Lebel
 .
\nCette conférence sera prononcée (en anglais) par le professeur  Je
 ffrey Johnston du Département de chimie de l'University of Vanderbilt.
\n
 Résumé : Our discovery that chiral nonracemic Bis(AMidine) – ‘BAM’
  – ligands can be effective modifiers of achiral Brønsted acids such as
  triflic acid became the basis for a general approach to fully stereocontr
 olled aza‐Henry reactions. As a result\, vic‐diamines are readily prep
 ared with high diastereo‐ and enantioselection in two steps from aldimin
 es and nitroalkanes. Our latest developments in bifunctional Brønsted aci
 d/Brønsted base catalyst design and development\, reaction exploration\, 
 and target acquisition using these tools will be described. Additionally\,
  our work to leverage chiral proton catalysis against the goal of fully en
 antioselective and efficient peptide synthesis via Umpolung Amide Synthesi
 s (UmAS) will be detailed.
\nInformation supplémentaireAnnonce PDF de la 
 conférence
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