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Transition metal-catalyzed olefin isomerization for remote functionalization strategies

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Defense Thèse de doctorat : Univ. Genève, 2018 - Sc. 5293 - 2018/12/13
Abstract Remote functionalization represents the opportunity to achieve a given transformation at a remote position with respect to an existing functional group. In this thesis, we disclosed the Pd-catalyzed deconjugative long-range isomerization of a,b−unsaturated carbonyl compounds bearing a remote hydroxyl-group for the preparation of a,w−dicarbonyl compounds. Next, two multicatalytic sequential systems were developed for the isomerization of alkenyl methyl ethers to methyl vinyl ethers and subsequent Ni-catalyzed cross-coupling with Grignard reagents. An Ir/Ni system was used with allyl methyl ethers and the enantioselective variant of the reaction was achieved, too. A Pd/Ni system allowed the remote functionalization of alkenyl methyl ethers. The long-range isomerization/borylation of a,b−unsaturated carbonyl compounds bearing a terminal aromatic group was attained using a multicatalytic sequential approach. A Pd-based system was able to discriminate between the two similar olefins of the starting material and the vinyl arene intermediate, which was engaged in a one-pot Cu-catalyzed b−borylation.
Keywords Remote FunctionalizationIsomerizationOlefinsDecojugativeCross-CouplingBorylationMulticatalyticPalladiumIridiumNickelCopperEnantioselectiveMechanism
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URN: urn:nbn:ch:unige-1137925
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Research group Groupe Mazet
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ROMANO, Ciro. Transition metal-catalyzed olefin isomerization for remote functionalization strategies. Université de Genève. Thèse, 2018. https://archive-ouverte.unige.ch/unige:113792

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Deposited on : 2019-02-04

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