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Skip to Search Results- 1Bauer, Richard
- 1Brown, Houston J. S.
- 1Brown, Orain, A
- 1Bunquin, Jeffrey
- 1Gauthier, Jeremy M.
- 1Subrata Patra
- 4Hydrodesulfurization
- 3Phosphorane imide
- 2Catalysis
- 2Hydrodeoxygenation
- 2Titanacyclobutene
- 1Boracyclobutene
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Fall 2012
This dissertation describes some advances that were made in the field of paramagnetic first-row transition metal complexes. Two independent topics will be discussed. The first topic that will be discussed is the preparation and reactivity of titanacylobutene complexes. Initially, the Stryker...
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Synthesis of boracyclobutenes by transmetallation; insertion and demetallation reactions of boracyclobutenes and titanacyclobutene complexes
DownloadFall 2009
A series of new titanacyclobutene complexes were prepared by samarium diiodide-mediated central carbon alkylation of η³-propargyltitanium complexes. The titanacyclobutenes were synthesized in high yield and completely characterized using NMR spectroscopy and, where applicable, single crystal...
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Regioselective Synthesis of Hydrazines and Heterocycles by Catalytic and Electrochemical N–N Bond Formation
DownloadFall 2021
Two new synthetic methods for preparing NN bond-containing heterocycles have been presented: one, by copper-catalyzed oxidative NN bond formation and two, by electrochemical reduction of N-nitroso compounds and subsequent ring-closing. The first method is copper(I)- and copper(II)-mediated...
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Spring 2017
Fortuitous characterization of the cationic nickel cluster [Ni4(NPtBu3)4][Li3Br4(Et2O)3] led to the rational syntheses and characterization of the mixed-valence low-coordinate cationic nickel cluster: [Ni4(NPtBu3)4]BPh4 and [Ni4(NPtBu3)4]PF6, and subsequently the preparation of the anionic...
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Mixed-Valence First-Row Metal Clusters for Catalytic Hydrodesulfurization and Hydrodeoxygenation
DownloadFall 2013
Salt metathesis between CoCl2 and [KNPEt3]n provides a new route to the halide-substituted cobalt phosphoranimide cluster [CoCl(NPEt3)]4. This cluster is a useful precursor for the preparation of alkyl-capped cobalt phosphoranimide complexes. The methylated heterocubane [CoMe(NPEt3)]4 was...
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First-Row Transition Metal-Mediated Reactions: Catalytic Ester Hydrogenolysis, Aerobic Alkane Oxidation, and [5+2] Ring-Expansion Reactions
DownloadSpring 2014
The research described in this dissertation focuses on first-row transition metal catalyzed and mediated organic reactions. The first part of the thesis involves the exploration of the catalytic reactivity of phosphoranimide-supported tetrametallic nickel and cobalt clusters, while the second...
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Spring 2018
A series of phosphoranimide-supported first-row transition metal clusters were prepared, structurally characterized, and investigated for catalytic hydrogenolysis of carbon-heteroatom bonds. Homoleptic heterocubane clusters, as well as two-dimensional bi- and tetranuclear compounds of manganese,...
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Empowering the Base Metals: Rational Design of Homogeneous Catalysts for Hydrotreatment, and Reduction of Organic Unsaturates
DownloadFall 2013
Hydrocarbon-soluble, low-coordinate, phosphoranimide-supported complexes of the base metals (iron, cobalt and nickel) were developed and evaluated for a range of stoichiometric and catalytic bond-forming and bond-breaking transformations. An unprecedented family of tetrametallic clusters of Co(I)...
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Development of Rh-Catalyzed Chemoselective Z-Olefin Synthesis and Ir- and Pd-Catalyzed Decarboxylative Enantioselective Benzylation
DownloadSpring 2019
Transition metal-catalyzed bond-forming reactions are powerful strategies in modern organic synthesis, which enable various functional group transformations and cross-coupling processes in a highly chemo-, regio- and enantioselective manner. Selectivity can be achieved through the appropriate...