A mechanochemical approach for organocatalysis and improved synthesis of gemini surfactants

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dc.contributor.advisor Singer, Robert D. (Robert Douglas), 1964-
dc.creator Campbell, Jacob William
dc.date.accessioned 2020-05-04T17:31:56Z
dc.date.available 2020-05-04T17:31:56Z
dc.date.issued 2020
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/29342
dc.description 1 online resource (ix, 63 pages) : illustrations
dc.description Includes abstract.
dc.description Includes bibliographical references (pages 59-63).
dc.description.abstract 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(trifluoromethyl)phenyl)thioureido)-benzyl)-1-methylpyrrolidin-1-ium hexafluorophosphate using a mechanochemical approach known as Liquid Assisted Grinding, LAG. These room temperature reactions used methanol as a liquid additive to achieve an 85.7 % conversion and 14.8 % isolated yields, which is a slight improvement over conventional methods. Gemini cationic surfactants have a lower critical micelle concentration (CMC) when compared to conventional analogues. This led to many improvements in materials such as soaps, detergents, wetting agents and foaming agents. There is a particular interest from a physical and material chemistry standpoint on how gemini cationic surfactants will behave with other surfactants in mixed micellular systems. Previously reported syntheses of quaternary amine gemini surfactants in the literature noted long reaction times, poor yields and large solvent use, making large scale production troublesome. Reported herein is an improved synthesis of mcm type cationic gemini surfactants using microwave irradiation. en_CA
dc.description.provenance Submitted by Greg Hilliard (greg.hilliard@smu.ca) on 2020-05-04T17:31:56Z No. of bitstreams: 1 Campbell_Jacob_Honours_2020.pdf: 2263052 bytes, checksum: c8d35cd2e359054e8a213424de8fd477 (MD5) en
dc.description.provenance Made available in DSpace on 2020-05-04T17:31:56Z (GMT). No. of bitstreams: 1 Campbell_Jacob_Honours_2020.pdf: 2263052 bytes, checksum: c8d35cd2e359054e8a213424de8fd477 (MD5) Previous issue date: 2020-04-23 en
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.title A mechanochemical approach for organocatalysis and improved synthesis of gemini surfactants en_CA
dc.type Text en_CA
thesis.degree.name Bachelor of Science (Honours Chemistry)
thesis.degree.level Undergraduate
thesis.degree.discipline Chemistry
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)
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