Sökning: "Torbjörn Norin"

Hittade 3 avhandlingar innehållade orden Torbjörn Norin.

1. 1. Natural products from nonracemie building blocks : synthesis of pine sawfly pheromones

   Författare :Michael Larsson; Torbjörn Norin; Gunnar Westman; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Total synthesis; diastereoselective addition; dimethylzinc; Lewis acid; alkyllithium; Organisk kemi; Organic chemistry; Organisk kemi;

   Sammanfattning : This thesis describes a number of synthetic approaches for obtaining chiral, enantiomerically pure natural products, in particular some semiochemicals. This has been accomplished by using various strategies; by starting from compounds from the chiral pool, by using chiral auxiliaries, via enzymatic resolutions or by chemical asymmetric synthesis. LÄS MER

3. 2. Enzymes as catalysts in synthesis of enantiomerically pure building blocks : secondary alcohols bearing two vicinal stereocenters

   Författare :Rong Liu; Hans-Erik Högberg; Torbjörn Norin; Thorleif Anthonsen; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; enzyme; kinetic resolution; enantioselectivity; lipase; diastereoselectivity; epimerisation; metal-catalysed transformation; intramolecular alkylation.; Chemistry; Kemi;

   Sammanfattning : Enzymes as tools in organic synthesis have provided enormous advantages. This thesis deals with the applications of enzymes in the kinetic resolutions of racemic compounds. The stereochemistry of chiral compounds and the kinetics of α/β hydrolase lipases are presented. LÄS MER

4. 3. Pheromone Synthesis : Conjugated Diene Systems and Oxygenated Carene Derivatives

   Författare :Rikard Unelius; Torbjörn Norin; Lars Skatteböl; KTH Organic Chemistry; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pheromone diene carene derivative; Organic Chemistry; Organisk kemi;

   Sammanfattning : .... LÄS MER