Sökning: "allenols"

Hittade 2 avhandlingar innehållade ordet allenols.

1. 1. Synthesis of chiral allyl and propargyl boronates by organocatalytic carbene insertion to carbon-boron bonds

   Författare :Marie Deliaval; Kálmán Szabó; Fahmi Himo; Carlos Valdés; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; boron; asymmetric synthesis; organocatalysis; allylic compounds; allenols; Organic Chemistry; organisk kemi;

   Sammanfattning : This thesis describes the development of a novel organocatalytic method for the synthesis of chiral allyl- and propargyl- organoboron compounds with high enantioselectivity. These organoboron species are versatile building blocks in asymmetric synthesis.We have developed a new efficient homologation method of alkenyl boronic acids. LÄS MER

3. 2. Iron-Catalyzed Reactions and X-Ray Absorption Spectroscopic Studies of Palladium- and Ruthenium-Catalyzed Reactions

   Författare :Arnar Guðmundsson; Jan-Erling Bäckvall; Hans-Joachim Knölker; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Iron; XAS; Cycloisomerization; DKR; Oxidation; organisk kemi; Organic Chemistry;

   Sammanfattning : The focus of this thesis is twofold: The first is on the application of iron catalysis for organic transformations. The second is on the use of in situ X-ray absorption spectroscopy (XAS) to investigate the mechanisms of a heterogeneous palladium-catalyzed reaction and a homogeneous ruthenium-catalyzed reaction. LÄS MER