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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Regioselective Reduction of N-Alkyl-3-sulfonyl Glutarimides and the Applications in Pharmaceuticals and Natural Product Synthesis

Chang, Bo-Rui 19 December 2002 (has links)
A formal [3+3] cycloaddition strategy to substituted glutarimides was studied. N-Alkyl-sulfonylacetamides and various a,b-unsaturated esters were used as starting materials. Regioselective reduction of N-alkyl-3-sulfonyl glutarimides and the applications in pharmaceuticals and natural product synthesis
2

Synthetic Studies Toward Alloyohimbane and Louisianin D

Chen, Hung-Wei 09 June 2006 (has links)
We have developed an one-pot reaction procedure to cis-fused bicyclic glutarimides. Synthesis of (+/-)-alloyohimbane (4) and louisianin D (5) were completed.
3

Réactions domino organocatalysées énantiosélectives à partir de cétoamides / Ketoamides in enantioselective organocatalyzed domino reactions

Goudedranche, Sébastien 28 November 2014 (has links)
Au cours de ces travaux nous nous sommes intéressés au développement de nouvelles transformations énantiosélectives combinant les outils modernes de la synthèse organique que sont les « Multiples Bond-Forming Transformations » et l'organocatalyse afin de synthétiser des molécules d'intérêt structural et biologique. Dans ce contexte, nous avons d'abord mis au point deux nouvelles réactions domino initiées par une addition de Michael. La première, une cascade addition de Michael-acylation, permet la synthèse de spiroglutarimides optiquement actifs à partir de β-cétoamides et de nouveaux bis-électrophiles, les cyanures d'acyle α,β-insaturés. La deuxième, une réaction domino addition de Michaelhémiacétalisation- hémiaminalisation, permet la synthèse de d'hétérocycles azotés à sept chaînons à partir d'α-cétoamides comme nouveaux bis-nucléophiles. / This work focused on the development of novel enantioselective transformations combining Multiples Bond-Forming Transformations and organocatalysis which are modern tools of organic synthesis in order to synthetize molecules of structural and biological interests. In this context, we developed two new Michael addition initiated domino reactions. The first one, a domino Michael addition-acylation, allows the synthesis of optically active spiroglutarimides starting from β-ketoamides and α,β-unsaturated acyles cyanides as new biselectrophiles.The second one, a domino Michael addition-hemiaminalizationhemiacetalization, allows the synthesis of seven-membered aza-cycles using α-ketoamides as new bis-nucleophiles.

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