This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
Search
Skip to Search Results-
A New Approach to Molecular Hydrodesulfurization Catalysts: Allyl-capped Trialkylphosphoranimide-bridged Late First-row Transition Metal Clusters
DownloadFall 2017
A series of new trialkylphosphoranimide allyl-capped clusters [M(ƞ3-allyl)(NPR)3]2, (M = Fe, Co or Ni, R = Et, tBu or Ph) were synthesized. The nickel dimers [Ni(ƞ3-allyl)(NPR3)]2, R = Et, Ph are diamagnetic and have been fully characterized using NMR spectroscopy, X-ray crystallography,...
-
Spring 2010
A comprehensive investigation of cycloalkenyl-alkyne coupling reactions mediated by cobalt(III) templates is presented. The in situ derived cationic η3-cyclohexenyl complexes of cobalt(III) react with some terminal alkynes to afford either η1,η4-bicyclo[4.3.1]decadienyl or...
-
Spring 2010
A new method for the preparation of seven-membered carbocycles via cobalt-mediated [5+2] cycloaddition methodology is presented. We have demonstrated that CpCo(η5-pentadienyl)+ systems undergo cycloaddition reactions with alkynes in a diastereocontrolled and high-yielding process. When...
-
Fall 2018
New triethylphosphoranimide-supported thiolate-capped clusters of cobalt and nickel were synthesized, isolated, and characterized as part of an investigation into homogeneous catalysts for the hydrodesulfurization of refractory organosulfur substrates. In particular, p-toluenethiolate and...
-
Fall 2009
In an attempt to expand the scope of titanacyclobutenes, malonate-derived α,ω-alkylpropargyl dibromides and α,ω-bis(bromopropargyl) malonates were prepared and examined for their reactivity with titanocene reagents. Unfortunately, all of the α,ω-alkylpropargyl dibromomalonates failed, presumably...
-
Unlocking the Hidden Potential of Cobalt: Hydrodeoxygenation of Aromatic Ketones by Cobalt Clusters
DownloadFall 2017
Cobalt phosphoranimide clusters [Co(NPPh3)(OSiMe3)(THF)]2, [Co(NPPh3)(OtBu)(THF)]2 and [Co(NPiPr3)2]3 were synthesized. Salt metathesis between CoBr2 and NaNPPh3 and a subsequent in situ reaction with KOSiMe3 provides a convenient and scalable preparation of [Co(NPPh3)(OSiMe3)(THF)]2. The same...