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DTSTAMP:20260411T072255
DTSTART:20180905T110000
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URL:https://murmitoyen.com/events/vanille/udem/detail/832713-conference-de-
 chimie-avec-le-professeur-armido-studeruniversitat-munster
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Conférence de chimie avec le professeur Armido Studer_Universität
  Münster
DESCRIPTION:Titre: ‘‘ Electron Catalysis’’
\n 
\nEndroit : Pavil
 lon Roger-Gaudry\, salle S-142 
\n 
\nHeure : 11:00 AM
\n 
\nHôte : 
 Professeur André Charette
\n 
\nRésumé : 
\nIn the lecture the conce
 pt of using the electron as a catalyst will be discussed.[1\,2] It will be
  shown that the electron is an efficient catalyst for conducting various t
 ypes of radical cascade reactions that proceed via radical and radical ion
  intermediates.[3] It will be emphasized how a negative charge can signifi
 cantly weaken the neighbouring C-H bond and activate this bond towards H-a
 tom transfer.[3e\,j] Moreover\, the activation of a C-H bond next to a C-r
 adical towards deprotonation is a key point in the field of electron-catal
 ysis. Extending that concept\, the use of a negative charge to activate a 
 C-C sigma-bond towards homolysis is also discussed.[3i\,k] For example\, e
 lectron catalyzed transition metal-free b-alkenylation-a-perfluoroalkylati
 on of unactivated alkenes via radical 1\,4 or 1\,5-alkenyl migration will 
 be presented.
\nIt will be further shown\, that readily generated vinyl bo
 ron ate complexes\, generally used as substrates in the Suzuki-Miyaura cou
 pling\, are efficient radical acceptors to conduct electron-catalyzed modu
 lar synthesis comprising a radical polar cross over step.[3h] This approac
 h has recently been successfully applied to the development of a novel met
 hod for the preparation of highly enantioenriched a-chiral ketones[3l] and
  a new method for radical borylation is introduced.[3n]
\n 
\nInformation
 s supplémentaires
\n 
\nAnnonce PDF de la conférence
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