Sökning: "silaboration"

Hittade 2 avhandlingar innehållade ordet silaboration.

1. 1. Silaborations of Unsaturated Compounds

   Författare :Martin Gerdin; Christina Moberg; Kálmán Szabó; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; allylboration; bismetallation; boron; carbocyclization; catalysis; 1; 3-diene; enantioselective; 1; 6-enyne; interelement; N-heterocyclic carbene; nickel; palladium; phosphine; phosphoramidite; platinum; reaction mechanism; silaboration; silicon; silylborane; stereoselective; Chemistry; Kemi;

   Sammanfattning : This thesis deals with the development of transition metal-catalyzed silaborations of 1,3-dienes and 1,6-enynes. The first part of the thesis describes the development of the enantioselective 1,4-silaboration of 1,3-cyclohexadiene. A number of chiral metal-ligand complexes were evaluated. LÄS MER

3. 2. Flexibility – a tool for chirality control in asymmetric catalysis

   Författare :Raivis Zalubovskis; Christina Moberg; Alexandre Alexakis; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; flexibility; symmetry; dissymmetry; asymmetric catalysis; chiral ligands; pseudo-C2; pseudo-CS; conformational study; rotation barrier; pyrrolidines; phospholanes; azepines; phosphepines; supramolecular; hydrogenation; allylic alkylation; silaboration; palladium; rhodium; nickel; platinum; iridium.; Organic chemistry; Organisk kemi;

   Sammanfattning : This thesis deals with the design and synthesis of ligands for asymmetric catalysis: palladium catalyzed allylic alkylations, and rho-dium and iridium catalyzed hydrogenations of olefins. Chirally flexible phosphepine ligands based on biphenyl were synthesized and their properties were studied. LÄS MER