{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/98283"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/98283","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Catalytic allylation of aldehydes mediated via the water-gas shift reaction","abstract":"This dissertation details the progress made in the catalytic, nucleophilic allylation of aldehydes, as mediated through the action of the Water-Gas Shift reaction (WGSR). Through this work, three main objectives were sought. Firstly, an expansion of the scope of the allyl pro-nucleophile as a way to both improve the synthetic utility of the reaction and explore steric and electronic effects of the allyl pro-nucleophile on the course of the reaction. This effort resulted in the successful application of five different 2-subtituted allyl acetates and an additional two non-symmetrical allyl pro-nucleophiles across a range of aldehydes in good to excellent yield with high regioselectivity in the case of the non-symmetrical allyl sources. Furthermore, the highly chemoselective nature of the reaction was further revealed as both ketone and ester containing allyl sources were not shown to be subjected to an allylation reaction of the carbonyl. Next, an efficient means to render the allylation reaction enantioselective was sought through the addition of both free chiral ligand and pre-complexed metal catalysts. While successful in the generation of enantioenriched homoallylic alcohol products, synthetically viable er values were not able to be obtained using the current class of ligand backbones. Finally, several alternative methods were explored to enhance the utility of the WGS allylation reaction, including substitution of a more readily available metal catalyst and photochemical activation. Ultimately, each of these efforts did not result in a more efficient allylation reaction than the thermally activated ruthenium-catalyze reaction.","abstract_html":"This dissertation details the progress made in the catalytic, nucleophilic allylation of aldehydes, as mediated through the action of the Water-Gas Shift reaction (WGSR). Through this work, three main objectives were sought. Firstly, an expansion of the scope of the allyl pro-nucleophile as a way to both improve the synthetic utility of the reaction and explore steric and electronic effects of the allyl pro-nucleophile on the course of the reaction. This effort resulted in the successful application of five different 2-subtituted allyl acetates and an additional two non-symmetrical allyl pro-nucleophiles across a range of aldehydes in good to excellent yield with high regioselectivity in the case of the non-symmetrical allyl sources. Furthermore, the highly chemoselective nature of the reaction was further revealed as both ketone and ester containing allyl sources were not shown to be subjected to an allylation reaction of the carbonyl. Next, an efficient means to render the allylation reaction enantioselective was sought through the addition of both free chiral ligand and pre-complexed metal catalysts. While successful in the generation of enantioenriched homoallylic alcohol products, synthetically viable er values were not able to be obtained using the current class of ligand backbones. Finally, several alternative methods were explored to enhance the utility of the WGS allylation reaction, including substitution of a more readily available metal catalyst and photochemical activation. Ultimately, each of these efforts did not result in a more efficient allylation reaction than the thermally activated ruthenium-catalyze reaction.","abstract_has_math":false,"creators":["Matesich, Zachery D"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemistry","degree_department":null,"school":null,"contributors":["Denmark, Scott E.","Moore, Jeffery S.","Rauchfuss, Thomas B.","Burke, Martin D."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-09-29T16:39:47Z","date_published":"2017-09-29T16:39:47Z","updated_at":"2026-07-22T22:24:35Z","subjects":["Carbon monoxide","Allylation","Enantioselective","Photochemical","Organometallic"],"languages":["en"],"rights":["Copyright 2017 Zachery Matesich"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/98283","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Denmark, Scott E.","Moore, Jeffery S.","Rauchfuss, Thomas B.","Burke, Martin D."]},{"key":"dc:creator","label":"Author","values":["Matesich, Zachery D"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2017-09-29T16:39:47Z","2019-09-30T09:15:29Z","2017-07-13","2017-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemistry"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Carbon monoxide","Allylation","Enantioselective","Photochemical","Organometallic"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2017 Zachery Matesich"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/98283"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This dissertation details the progress made in the catalytic, nucleophilic allylation of aldehydes, as mediated through the action of the Water-Gas Shift reaction (WGSR). Through this work, three main objectives were sought. Firstly, an expansion of the scope of the allyl pro-nucleophile as a way to both improve the synthetic utility of the reaction and explore steric and electronic effects of the allyl pro-nucleophile on the course of the reaction. This effort resulted in the successful application of five different 2-subtituted allyl acetates and an additional two non-symmetrical allyl pro-nucleophiles across a range of aldehydes in good to excellent yield with high regioselectivity in the case of the non-symmetrical allyl sources. Furthermore, the highly chemoselective nature of the reaction was further revealed as both ketone and ester containing allyl sources were not shown to be subjected to an allylation reaction of the carbonyl. Next, an efficient means to render the allylation reaction enantioselective was sought through the addition of both free chiral ligand and pre-complexed metal catalysts. While successful in the generation of enantioenriched homoallylic alcohol products, synthetically viable er values were not able to be obtained using the current class of ligand backbones. Finally, several alternative methods were explored to enhance the utility of the WGS allylation reaction, including substitution of a more readily available metal catalyst and photochemical activation. Ultimately, each of these efforts did not result in a more efficient allylation reaction than the thermally activated ruthenium-catalyze reaction.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2019-08-01","The student, Zachery Matesich, accepted the attached license on 2017-07-12 at 11:15.","The student, Zachery Matesich, submitted this Dissertation for approval on 2017-07-12 at 11:25.","This Dissertation was approved for publication on 2017-07-13 at 17:48.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11423 on 2017-09-29 at 11:19:11","Made available in DSpace on 2017-09-29T16:39:47Z (GMT). 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Through this work, three main objectives were sought. Firstly, an expansion of the scope of the allyl pro-nucleophile as a way to both improve the synthetic utility of the reaction and explore steric and electronic effects of the allyl pro-nucleophile on the course of the reaction. This effort resulted in the successful application of five different 2-subtituted allyl acetates and an additional two non-symmetrical allyl pro-nucleophiles across a range of aldehydes in good to excellent yield with high regioselectivity in the case of the non-symmetrical allyl sources. Furthermore, the highly chemoselective nature of the reaction was further revealed as both ketone and ester containing allyl sources were not shown to be subjected to an allylation reaction of the carbonyl. Next, an efficient means to render the allylation reaction enantioselective was sought through the addition of both free chiral ligand and pre-complexed metal catalysts. While successful in the generation of enantioenriched homoallylic alcohol products, synthetically viable er values were not able to be obtained using the current class of ligand backbones. Finally, several alternative methods were explored to enhance the utility of the WGS allylation reaction, including substitution of a more readily available metal catalyst and photochemical activation. Ultimately, each of these efforts did not result in a more efficient allylation reaction than the thermally activated ruthenium-catalyze reaction.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2019-08-01","The student, Zachery Matesich, accepted the attached license on 2017-07-12 at 11:15.","The student, Zachery Matesich, submitted this Dissertation for approval on 2017-07-12 at 11:25.","This Dissertation was approved for publication on 2017-07-13 at 17:48.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11423 on 2017-09-29 at 11:19:11","Made available in DSpace on 2017-09-29T16:39:47Z (GMT). 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