Browsing Honours Theses by Author "Singer, Robert D., 1964-"

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Bis-thiourea based ionic organocatalysts

Watson, Andrew Allison (Halifax, N.S. : Saint Mary's University, 2015)

Ionic liquids and organocatalysts serve as greener alternatives to conventional reaction solvents and catalysts. Recent research has found that pyrrolidinium tagged ionic organocatalysts enhance the rate of DABCO co-catalyzed ...
An exploration of thermomechanical softwood pulp for N95 respiratory mask production

McLeod, Kaleigh Elizabeth Rita (Halifax, N.S. : Saint Mary's University, 2021)

The COVID-19 pandemic has highlighted supply chain issues for personal protective equipment (PPE) in Canada. In addition, many PPE products are produced from non-renewable feedstocks. Wood pulp is an abundant and renewable ...
Ionic core dependence of ionophilic thiourea organocatalysis in ionic liquids

Parsons, Katherine (Halifax, N.S. : Saint Mary's University, 2018)

The Morita-Baylis-Hillman reaction forms a carbon-carbon bond between an electrondeficient alkene and an aldehyde in an atom economic, albeit slow, reaction in the presence of catalytic tertiary amine or phosphine.1 Utilizing ...
A mechanochemical approach for organocatalysis and improved synthesis of gemini surfactants

Campbell, Jacob William (Halifax, N.S. : Saint Mary's University, 2020)

Mechanochemistry and organocatalysis provide green synthetic methods for chemical reactions. Reported herein are Morita-Baylis-Hilman reactions co-catalyzed by 1,4-diazabicyclo[2.2.2]octane, DABCO, and 1-(4-(3-(3,5-bis(t ...
N-demethylation of alkaloids using nanoscale zero valent iron

Awalt, Jon Kyle (Halifax, N.S. : Saint Mary's University, 2016)

The N-demethylation of naturally occurring opiate compounds is a necessary step in the synthesis of many pseudo-opioid pharmaceuticals. Such drugs have gained recent media attention in the fight against opiate addiction; ...
Phosphonium ion based salen derivatives for use in catalysis

Lavoie, Chris Mark (Halifax, N.S. : Saint Mary's University, 2014)

Schiff base ligands and their respective complexes are well established for use in asymmetric catalysis. With difficulty of separation of the catalyst from reaction mixtures being one of the more salient drawbacks to these ...
Phosphonium ionic liquid based salen ligands for use in catalysis

Prudhoe, Christine (Halifax, N.S. : Saint Mary's University, 2013)

Salen ligands and their corresponding complexes are well known in the field of asymmetric catalysis due to their success in stereoselective reactions. A method that easily allows for recycling of the catalyst without ...
Synthesis of novel first-row transition metal-N-heterocyclic carbene complexes and synthesis of N-heterocyclic carbene-functionalized linkers for metal organic frameworks

Hoare, Jacob Geoffrey (Halifax, N.S. : Saint Mary's University, 2022-04-26)

Although N-heterocyclic carbene ligands are highly versatile and powerful ligands in transition metal catalysis, complexes of N-heterocyclic carbenes with 3d metals are uncommon and frequently unstable. ...