{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/84466"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/84466","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The Total Synthesis of (-)-Detoxinine and (+)-Casuarine Using Tandem [4 + 2]/[3 + 2] Nitroalkene Cycloadditions and Cycloadditions of Nitroethylene","abstract":"The first synthesis of (+)-casuarine, a pentahydroxy pyrrolizidine alkaloid of the alexine/australine subclass, is described. The key step is a tandem inter [4+2]/inter [3+2] nitroalkene cycloaddition involving an oxygenated nitroalkene, chiral vinyl ether, and vinyl silane dipolarophile, which establishes five of the six stereocenters present in this potent glycosidase inhibitor. The completion of the synthesis required only four additional steps to deliver the final product in 20% overall yield.","abstract_html":"The first synthesis of (+)-casuarine, a pentahydroxy pyrrolizidine alkaloid of the alexine/australine subclass, is described. The key step is a tandem inter [4+2]/inter [3+2] nitroalkene cycloaddition involving an oxygenated nitroalkene, chiral vinyl ether, and vinyl silane dipolarophile, which establishes five of the six stereocenters present in this potent glycosidase inhibitor. The completion of the synthesis required only four additional steps to deliver the final product in 20% overall yield.","abstract_has_math":false,"creators":["Hurd, Alexander Ross"],"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."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T22:14:38Z","date_published":"2015-09-25T22:14:38Z","updated_at":"2026-07-22T22:26:23Z","subjects":["Chemistry, Organic"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9955629"],"render_values":[{"text":"(MiAaPQ)AAI9955629","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/84466","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Denmark, Scott E."]},{"key":"dc:creator","label":"Author","values":["Hurd, Alexander Ross"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T22:14:38Z","10000-01-01","2000"]},{"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":["Chemistry, Organic"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/84466","(MiAaPQ)AAI9955629"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The first synthesis of (+)-casuarine, a pentahydroxy pyrrolizidine alkaloid of the alexine/australine subclass, is described. 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