32 research outputs found

    PyOX-ligands: the asymmetric Henry reaction

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    Abstract: C 2 -dissymmetric PyOX-ligands have been applied to the asymmetric Henry reaction. This widely applicable reaction is easy to perform, requires no inert atmospheres or dry solvents, and gives good selectivities. By adjusting ligand side-chains, a significant impact on selectivities was observed

    Ligand creation via linking - a rapid and convenient method for construction of novel supported PyOX-ligands

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    A novel supported amino alcohol linker was synthesized and utilized for attachment of picolinic acid derivatives onto different supports. When the resin bound molecule was further activated, the PyOX-moiety could be constructed reliably in enantiopure form. Furthermore, an efficient Pd-catalyzed modification of a picolinic acid derivative is presented.Peer reviewe

    Asymmetric Organocatalytic Diels-Alder Reactions on Solid Support

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    Asymmetric organocatalysis on solid support combines the environmental advantages of metal-free catalysts and the ease of operation of solid-supported reagents. Enantioselective organocatalytic DielsAlder reactions have been demonstrated by two different solid-supported chiral organocatalysts. The catalysts are easy to recover and they can be reused. The reactivity of the catalyst can be tuned by changing the solid support.Peer reviewe

    Synthesis of a novel carboxy functionalized PyOX-ligand

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    A short and convenient synthesis of a carboxy functionalized PyOX-core is presented. The carboxy functionality offers a wide variety of possibilities for further modification. In this paper, the core is functionalized with a mercapto tail.Peer reviewe

    Exact Aggregation in Exponential Queueing Networks

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