Sökning: "Vinyl phosphonates"

Hittade 2 avhandlingar innehållade orden Vinyl phosphonates.

  1. 1. Asymmetric Hydrogenations : Syntheses of Ligands and Expansion of Substrate Scope

    Författare :Pradeep Cheruku; Pher Andesson; Jay Siegel; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Catalysis; Asymmetric; Hydrogenations; Reductions; Olefins; Imines; Enol phosphinates; Transition metal; Complexes; Iridium; Enamines; Ruthenium; Ligands; Trifluoromethyl; Diphenylvinylphosphine oxides; Vinyl phosphonates; Chemistry; Kemi;

    Sammanfattning : Asymmetric hydrogenation has emerged as a versatile methodology to obtain a wide range of chiral precursors. This thesis focused on the synthesis of new chiral ligands and the expansion of the substrate scope of asymmetric hydrogenations. LÄS MER

  3. 2. Asymmetric Hydrogenations using N, P - Ligated Iridium Complexes

    Författare :Alexander Paptchikhine; Pher G. Andersson; Karl Anker Jørgensen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; asymmetric hydrogenation; iridium; birch; boronates; fluorine;

    Sammanfattning : The research described in this thesis focuses on the catalytic asymmetric hydrogenation of prochiral olefins using N, P – chelated iridium catalysts. This catalytic system is tolerant to a wide range of substrates and performs better than the well-known ruthenium- and rhodium-catalytic systems for substrates devoid of coordinating groups in proximity of the olefin. LÄS MER