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DTSTART:20171122T110000
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URL:https://murmitoyen.com/events/vanille/udem/detail/787200-conference-de-
 chimie-avec-le-prof-ragogna-western
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Conférence de chimie avec le Prof. Ragogna (Western)
DESCRIPTION:Titre : ‘‘An examination of phosphinidene chalcogenide chem
 istry: Versatile low coordinate P(III) units’’Hôte : Professeur Willi
 am SkeneEndroit: Pavillon J.-Armand Bombardier\, Local 1035 à partir de
  11h
\nCette conférence sera prononcée par le professeur Paul J. Rago
 gna de la Western University.
\nRésumé: Recent work in the Ragogna Group
  has centred on developing inorganic heterocycles\, specifically in the pu
 rsuit of 'aromatic' analogues composed solely of inorganic elements. These
  efforts have led to the preparation of 4-membered rings with P2Ch2 cores 
 (Ch = S\, Se) and we have explored the chemistry of the sulfur derivative 
 in some detail. A central building block in the R2P2S2 ring is the low coo
 rdinate\, P(III) R-P=S unit\, which can be accessed by gentle heating of t
 he parent 4-membered ring. The liberated phosphinidene sulfide intermediat
 e can be utilized in a variety of onwards reactions\, most notably in prep
 aring new inorganic and organic/inorganic hybrid rings. The results of thi
 s work underscore the many 'faces' of phosphinidene sulfides where they ex
 hibit olefinic (left)\, zwitterionic (centre) and carbenic modes of reacti
 vity. An overview of the relevant background\, our trials and tribulations
  of getting the chemistry done (well\, Cam’s trials and tribulations mos
 tly) and key results will be presented. 
\nRepresentative references:
\n1.
  C.M.E. Graham\, T.E. Pritchard\, P. Boyle\, J. Valus\, H.M. Tuononen\, P.
 J. Ragogna. Angew. Chem. Int. Ed.\, 2017\, 56\,6336.
\n2. He\, G.\; Shynka
 ruk\, O.\; Lui\, M. W.\; Rivard\, E. Chem. Rev. 2014\, 114.
\n3. Velian\, 
 A.\; Nava\, M.\; Temprado\, M.\; Zhou\, Y.\; Field\, R. W.\; Cummins\, C. 
 C. J. Am. Chem. Soc. 2014\, 54\, 13586.
\n4. Hering-Junghans\, C.\; Rivard
 \, E. Angew. Chem.\, Int. Ed. 2015\, 54\, 10077.
\n5. Cameron\, T. S.\; Di
 onne\, I.\; Jenkins\, H. D. B.\; Parsons\, S.\; Passmore\, J.\; Roobottom\
 , H. K. Inorg. Chem. 2000\, 39\, 2042.
\n6. Passmore\, J.\; Sutherland\, G
 .\; White\, P. S. J. Chem. Soc. Chem. Commun. 1980\, 330.
\n Annonce PDF 
 de la conférenceSite web du groupe Ragogna
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