Structural consequences in α- and β-glucopyranosidato complexes of Cp*TiCl3

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Autor/in:
Erscheinungsjahr:
2009
Medientyp:
Text
Schlagworte:
  • Sugars
  • Carbohydrates
  • Sugar alcohols
  • Glycosylation
  • Glycosides
  • Configuration determination
  • Titanium
  • Stereochemistry
  • Dinuclear complexes
  • Sugars
  • Carbohydrates
  • Sugar alcohols
  • Glycosylation
  • Glycosides
Beschreibung:
  • The reaction of methyl-4,6-0-(naphthyl-2'-methylidene)-αD- glucopyranoside (α-MeNGH2) with trichloridopentamethylcyclopentadienyltitanium [Cp* TiCl3] and triethylamine in toluene reveals the dinuclear complex [(Cp*Ti.Cl)-μ- (αMeNG)]2 (2). Complex 2 was characterized by elemental analysis, 1H and 13C NMR spectroscopy, circular dichroism, as well as single-crystal structure analysis. Compared to the complex with the β-anomer of the ligand in [(Cp*TiCl)-μ-(βMeNGJ]2 (1), it is obvious that the absolute configuration of the Ti atoms in 2 have changed. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
  • The reaction of methyl-4,6-O-(naphthyl-2'-methylidene)-alpha-D-glucopyranoside (alpha-MeNGH(2)) with trichloridopentamethylcyclopentadienyltitanium {[}Cp{*}TiCl3] and triethylamine in toluene reveals the dinuclear complex {[}(Cp{*}TiCl)-mu-(alpha-MeNG)](2) (2). Complex 2 was characterized by elemental analysis, H-1 and C-13 NMR spectroscopy, circular dichroism, as well as single-crystal structure analysis. Compared to the complex with the beta-anomer of the ligand in {[}(Cp{*}TiCl)-mu-(beta-MeNG)](2) (1), it is obvious that the absolute configuration of the Ti atoms in 2 have changed. ((C) Wiley-VCH Verlag GmbH \& Co. KGaA, 69451 Weinheim, Germany, 2009)
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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