Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"Asymmetric organocatalysis."”.
-
ASYMMETRIC ORGANOCATALYTIC HENRY REACTION OF β–SUBSTITUTED α-KETO ESTERS VIA DYNAMIC KINETIC RESOLUTION
… a brief historical background and development of asymmetric catalysis. Particularly, the asymmetric organocatalysis is introduced in detail. Then the historical background and development of dynamic kinetic resolution are summarized, especially, those organocatalytic methods are introduced in …
-
Design and Synthesis of Chiral Triazolium and Thiazolium Salts Incorporating Hydrogen-Bonding Motifs as Organocatalysts
… condensation is the rst reported example of organocatalysis, and has been studied and used in organic synthesis for over 200 years. Originally catalysed by the cyanide anion, the reaction can also proceed with thiamine as a catalyst. Since then, many N- heterocyclic carbene (NHC) catalysts …
-
Single electron studies of acylammonium intermediates, zinc-mediated carboxylations in flow, and the total synthesis of (–)-inthomycin C.
For the past two decades, the synthetic utility of chiral ⍺,𝛽-unsaturated acylammonium salts has led to the development and disclosure of unique, multibond forming, organocascade reactions, all of which have proceed through two-electron, polar pathways. This has led our group to begin exploring the …
-
Sintesi di molecole organiche enantiomericamente arricchite con l'uso della catalisi organica
The main topic of this thesis is the use of organocatalysis to synthesize organic compounds enantiomerically enriched. The first matter is about the synthesis of α-amino thioester derivatives through a tandem condensation-intramolecular rearrangement-protonation, this is a conceptually novel chiral …