Sökning: "allylboronic acid"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden allylboronic acid.

  1. 1. Synthesis of Organoboronic Acids and Applications in Asymmetric Organocatalysis

    Författare :Sybrand Jonker; Kálmán Szabó; Jörg Pietruszka; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Boronic acid; BINOL; allylboration; propargylation; homologation; stereoselective synthesis; asymmetric synthesis; organocatalysis; allylboronic acid; allenylboronic acid; organisk kemi; Organic Chemistry;

    Sammanfattning : Allyl- and allenylboronic acids are valuable reagents in organic synthesis due to their configurational stability and high reactivity. Few allyl- and allenylboronates are commercially available. Therefore, both the preparation and synthetic application of these organoboronic acids are subjects of study. LÄS MER

  3. 2. Catalytic Regio- and Stereoselective Reactions for the Synthesis of Allylic and Homoallylic Compounds

    Författare :Rauful Alam; Kalman Szabo; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; palladium catalysis; C−H functionalization; boronic acid; allylboration; asymmetric catalysis; allylic; homoallylic; diastereoselective; enantioselective; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis is focused on two main areas of organic synthesis, palladium-catalyzed functionalization of alkenes and allylic alcohols, as well as development of new allylboration reactions.We have developed a palladium-catalyzed selective allylic trifluoroacetoxylation reaction based on C−H functionalization. LÄS MER

  4. 3. Palladium-catalyzed Allylic C-H and C-OH Functionalization. Reactions of the Obtained Allylboronic Acids

    Författare :Rauful Alam; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is focused on the studies of two major transformations. The first transformation deals with the development of palladium-catalyzed selective allylic trifluoroacetoxylation reactions based on C-H functionalization, whereas the second comprises the synthesis and isolation of allylboronic acids using diboronic acid B2(OH)4 as boron source. LÄS MER

  5. 4. Development of New Synthetic Routes to Organoboronates by Catalytic Allylic Substitution and C-H bond Functionalization

    Författare :Vilhelm Olsson; Kálmán Szabó; Gary A. Molander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Palladium; Iridium; Boron; Catalysis; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis describes the development of new catalytic methods for the synthesis and application of organometallic reagents, mainly focusing on allylboronic acid derivatives. Thus, palladium pincer-complex catalysis has been applied for extending the scope of palladiumcatalyzed borylation reactions in the synthesis of regio- and stereodefined functionalized allylboronic acid derivatives. LÄS MER

  7. 5. Palladium-Catalyzed Synthesis and Transformation of Organoboranes

    Författare :Sara Sebelius; Kálmán J. Szabó; Todd Marder; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; allylborane palladium; Organic chemistry; Organisk kemi; SRA - Molecular Bioscience;

    Sammanfattning : This thesis presents the development of new palladium-catalyzed transformations involving synthesis and application of allylborane reagents. In these reactions various palladium sources, including pincer complexes and commonly used catalysts were applied. LÄS MER