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Doctoral thesis
English

Copper catalyzed conjugate addition to polyconjugated Michael acceptors

ContributorsTissot, Matthieu
Defense date2012-10-31
Abstract

Copper catalysed conjugate addition is one of the most powerful methods for the creation of the C-C bond as part of the quest to develop new synthetic routes towards the generation of specific chiral centers. In this Ph.D work, our objective was to extend the asymmetric conjugate addition (ACA), to a new class of challenging substrates, the polyconjugated Michael acceptors. The main challenge with this class of substrates is to control the regioselectivity and the enantioselectivity. We discovered that many factors influenced the regioselectivity trends, such as the electronic and the steric properties of the Michael acceptors. Also an important dependence on the nature of the nucleophilic species was observed. By choosing appropriate combination of parameters, we developed various methodologies allowing the selective 1,4- or 1,6-addition with high level of enantiocontrol. We also demonstrated the synthetic value of those methodologies by synthesizing valuable building blocks bearing quaternary stereogenic centers.

eng
Keywords
  • Copper
  • Conjugate addition
  • Polyconjugated
  • Organometallic reagents
Citation (ISO format)
TISSOT, Matthieu. Copper catalyzed conjugate addition to polyconjugated Michael acceptors. 2012. doi: 10.13097/archive-ouverte/unige:24382
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Technical informations

Creation10.12.2012 14:16:00
First validation10.12.2012 14:16:00
Update time14.03.2023 17:46:38
Status update14.03.2023 17:46:38
Last indexation29.01.2024 19:37:08
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