{"id":{"repo_id":"duke","oai_identifier":"oai:dukespace.lib.duke.edu:10161/19809"},"canonical_url":"https://search.dev.ndltd.org/etd/duke/oai:dukespace.lib.duke.edu:10161/19809","repository":{"repo_id":"duke","name":"Duke University","base_url":"https://dukespace.lib.duke.edu/server/oai/request"},"display":{"title":"Advances in Selectivity of the Suzuki-Miyaura and Hofmann-Löffler-Freytag Reactions","abstract":"<p>The design of synthetic transformations that proceed selectively in the presence of multiple sites of similar chemical reactivity has been a long-standing challenge. Cross-coupling and C–H functionalization processes have gathered significant attention over the past few decades as a result of their ability to rapidly generate molecular complexity. Despite these advances, a chemist’s ability to judiciously, selectively, and predictably perform these synthetic transformations has not yet been fully realized. Herein disclosed are the investigations into new methods for the Suzuki-Miyaura and Hofmann-Löffler-Freytag reactions that proceed with predictable selectivity. </p><p>Tactical advances have resulted in the development of selective, serial, and exhaustive cross-coupling transformations of alkyl pinacol boronic esters with polyhalogenated (hetero)arenes. These Suzuki-Miyaura processes facilitate access to a wide variety of alkyl-substituted aromatic compounds, specifically 2-alkylpyridines, which constitute an important class of functional molecules.</p><p> Conceptual innovations have established sulfamate esters as a promising manifold for the radical-mediated functionalization of remote, aliphatic C–H bonds. New methods for the synthesis of sulfamate esters have facilitated access to these valuable functional motifs, thereby allowing their use in Hofmann-Löffler-Freytag reactions. Accordingly, the selective, sulfamate ester-guided chlorination of remote C(sp3)–H bonds has been developed. This transformation proceeds with unique site-selectivity and furnishes γ-functionalized masked alcohol derivatives.</p>","abstract_html":"&lt;p&gt;The design of synthetic transformations that proceed selectively in the presence of multiple sites of similar chemical reactivity has been a long-standing challenge. Cross-coupling and C–H functionalization processes have gathered significant attention over the past few decades as a result of their ability to rapidly generate molecular complexity. Despite these advances, a chemist’s ability to judiciously, selectively, and predictably perform these synthetic transformations has not yet been fully realized. Herein disclosed are the investigations into new methods for the Suzuki-Miyaura and Hofmann-Löffler-Freytag reactions that proceed with predictable selectivity. &lt;/p&gt;&lt;p&gt;Tactical advances have resulted in the development of selective, serial, and exhaustive cross-coupling transformations of alkyl pinacol boronic esters with polyhalogenated (hetero)arenes. These Suzuki-Miyaura processes facilitate access to a wide variety of alkyl-substituted aromatic compounds, specifically 2-alkylpyridines, which constitute an important class of functional molecules.&lt;/p&gt;&lt;p&gt; Conceptual innovations have established sulfamate esters as a promising manifold for the radical-mediated functionalization of remote, aliphatic C–H bonds. New methods for the synthesis of sulfamate esters have facilitated access to these valuable functional motifs, thereby allowing their use in Hofmann-Löffler-Freytag reactions. Accordingly, the selective, sulfamate ester-guided chlorination of remote C(sp3)–H bonds has been developed. This transformation proceeds with unique site-selectivity and furnishes γ-functionalized masked alcohol derivatives.&lt;/p&gt;","abstract_has_math":false,"creators":["Blackburn, Jeffrey Miles"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Roizen, Jennifer L"],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019","date_published":"2019","updated_at":"2026-07-24T02:07:08Z","subjects":["Organic chemistry","chlorination","cross-coupling","pyridine","radical","selective","sulfamate esters"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10161/19809","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Roizen, Jennifer L"]},{"key":"dc:creator","label":"Author","values":["Blackburn, Jeffrey Miles"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2020-01-27T16:51:57Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2021-09-12T08:17:10Z"]},{"key":"dc:date.issued","label":"Date","values":["2019"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Organic chemistry","chlorination","cross-coupling","pyridine","radical","selective","sulfamate esters"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10161/19809"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["<p>The design of synthetic transformations that proceed selectively in the presence of multiple sites of similar chemical reactivity has been a long-standing challenge. Cross-coupling and C–H functionalization processes have gathered significant attention over the past few decades as a result of their ability to rapidly generate molecular complexity. Despite these advances, a chemist’s ability to judiciously, selectively, and predictably perform these synthetic transformations has not yet been fully realized. Herein disclosed are the investigations into new methods for the Suzuki-Miyaura and Hofmann-Löffler-Freytag reactions that proceed with predictable selectivity. </p><p>Tactical advances have resulted in the development of selective, serial, and exhaustive cross-coupling transformations of alkyl pinacol boronic esters with polyhalogenated (hetero)arenes. These Suzuki-Miyaura processes facilitate access to a wide variety of alkyl-substituted aromatic compounds, specifically 2-alkylpyridines, which constitute an important class of functional molecules.</p><p> Conceptual innovations have established sulfamate esters as a promising manifold for the radical-mediated functionalization of remote, aliphatic C–H bonds. New methods for the synthesis of sulfamate esters have facilitated access to these valuable functional motifs, thereby allowing their use in Hofmann-Löffler-Freytag reactions. Accordingly, the selective, sulfamate ester-guided chlorination of remote C(sp3)–H bonds has been developed. This transformation proceeds with unique site-selectivity and furnishes γ-functionalized masked alcohol derivatives.</p>"]},{"key":"dc:title","label":"Title","values":["Advances in Selectivity of the Suzuki-Miyaura and Hofmann-Löffler-Freytag Reactions"]}]}],"canonical_facts":{"dc:contributor.advisor":["Roizen, Jennifer L"],"dc:creator":["Blackburn, Jeffrey Miles"],"dc:date.accessioned":["2020-01-27T16:51:57Z"],"dc:date.available":["2021-09-12T08:17:10Z"],"dc:date.issued":["2019"],"dc:description.abstract":["<p>The design of synthetic transformations that proceed selectively in the presence of multiple sites of similar chemical reactivity has been a long-standing challenge. Cross-coupling and C–H functionalization processes have gathered significant attention over the past few decades as a result of their ability to rapidly generate molecular complexity. Despite these advances, a chemist’s ability to judiciously, selectively, and predictably perform these synthetic transformations has not yet been fully realized. Herein disclosed are the investigations into new methods for the Suzuki-Miyaura and Hofmann-Löffler-Freytag reactions that proceed with predictable selectivity. </p><p>Tactical advances have resulted in the development of selective, serial, and exhaustive cross-coupling transformations of alkyl pinacol boronic esters with polyhalogenated (hetero)arenes. These Suzuki-Miyaura processes facilitate access to a wide variety of alkyl-substituted aromatic compounds, specifically 2-alkylpyridines, which constitute an important class of functional molecules.</p><p> Conceptual innovations have established sulfamate esters as a promising manifold for the radical-mediated functionalization of remote, aliphatic C–H bonds. New methods for the synthesis of sulfamate esters have facilitated access to these valuable functional motifs, thereby allowing their use in Hofmann-Löffler-Freytag reactions. Accordingly, the selective, sulfamate ester-guided chlorination of remote C(sp3)–H bonds has been developed. This transformation proceeds with unique site-selectivity and furnishes γ-functionalized masked alcohol derivatives.</p>"],"dc:identifier.uri":["https://hdl.handle.net/10161/19809"],"dc:subject":["Organic chemistry","chlorination","cross-coupling","pyridine","radical","selective","sulfamate esters"],"dc:title":["Advances in Selectivity of the Suzuki-Miyaura and Hofmann-Löffler-Freytag Reactions"],"dc:type":["Dissertation"]},"updated_at":"2026-07-24T02:07:08Z"}