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DTSTAMP:20260412T134102
DTSTART:20170412T110000
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URL:https://murmitoyen.com/events/vanille/udem/detail/739265-main-group-com
 pounds-for-bond-activation-and-catalysis
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Main Group Compounds for Bond Activation and Catalysis
DESCRIPTION:Cette conférence sera prononcée (en anglais) par le profess
 eur Georgii Nikonov du département de chimie de Brock University.
\nRésu
 mé : Main group metal catalysis is of great current interest due to its p
 otential to circumvent the high cost and toxicity of common transition met
 al catalysts.1 One of the major hurdles in this area is the lack of oxidat
 ive additions of robust o bonds (e.g. H‒X\, C‒X\, P‒P\, S‒S) to ma
 in group centres.2\,3\,4 However\, recent work has demonstrated the abilit
 y of low valent main group compounds to mimic transition metal complexes i
 n the cleavage of strong single bonds.2
\nWe have recently reported facile
  activation of H‒X bonds (where X = H\, B\, Al\, C\, Si\, N\, P\, O) by 
 the β-diketoiminato stabilized complex of aluminum in the +1 oxidation st
 ate\, 1.5 We have since extended the scope of bond activations to other si
 ngle bonds including carbon‒oxygen\, carbon‒sulfide\, and carbon‒hal
 ide as well as element‒element bonds in disulfides and diphosphines.6 Co
 mplex 1 is able to oxidatively add the very robust C-F bonds in aryl and a
 lkyl fluorides.7 We are now very well positioned to cleave multiple bonds 
 X=Y (X=C\, P\; Y=S\, N\, O).8
\nOur efforts to prepare zero-valent main-gr
 oup complexes will be also discussed.9
\nHôte : Professeur Davit Zargari
 an
\nReferences
\n
\nP. P. Power\, Nature 2010\, 463\, 171-177.
\nM. Asay\
 , C. Jones\, M. Driess\, Chem. Rev. 2010\, 111\, 354-396.
\nG. H. Spikes\,
  J. C. Fettinger\, P. P. Power\, J. Am. Chem. Soc. 2005\, 127\, 12232-1223
 3.
\nG. D. Frey\, V. Lavallo\, B. Donnadieu\, W. W. Schoeller\, G. Bertran
 d\, Science 2007\, 316\, 439-441.
\nT. Chu\, I. Korobkov\, G. I. Nikonov\,
  J. Am. Chem. Soc. 2014\, 136\, 9195-9202.
\nT. Chu\, Y. Boyko\, I. Korobk
 ov\, L.G. Kuzmina\, J.A.K. Howard\, G.I.Nikonov\, Inorg.Chem.\, 2016\, 55\
 , 9099–9104.
\nT. Chu\, Y. Boyko\, Korobkov I.\, G.I.Nikonov\, Organomet
 allics\, 2015\, 34\, 5363–5365.
\nT. Chu\, S.F. Vyboishchikov\, B. Gabid
 ullin\, G.I. Nikonov\, Angew. Chem. Int. Ed. 2016\, 55\, 13306–13311.
\n
 T. Chu\, L. Belding\, A.van der Est\, T. Dudding\, I. Korobkov\, G.I. Niko
 nov\, Angew. Chem. Int. Ed. 2014\, 53\, 2711–2715.
\n
\nInformation supp
 lémentaireAffiche de la conférence
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