Search for dissertations about: "Fahmi Professor"

Showing result 1 - 5 of 11 swedish dissertations containing the words Fahmi Professor.

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

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

   Abstract : 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. READ MORE

4. 2. Quantum Chemical Modeling of Phosphoesterase Mimics and Chemistry in Confined Spaces

   Author : Henrik Daver; Fahmi Himo; Gregori Ujaque; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; density functional theory; catalysis; phosphoester hydrolysis; transesterification; supramolecular chemistry; inclusion complex; host-guest chemistry; cycloaddition; organisk kemi; Organic Chemistry;

   Abstract : In this thesis, density functional theory is employed in the study of two kinds of systems that can be considered to be biomimetic in their own ways. First, three binuclear metal complexes, synthesized by the group of Prof. Ebbe Nordlander, have been investigated. READ MORE

5. 3. Quantum Chemical Studies of Mechanisms and Stereoselectivities of Organocatalytic Reactions

   Author : Peter Hammar; Hans Ågren; Fahmi Himo; Gregori Ujaque; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Theoretical chemistry; Teoretisk kemi; Organic chemistry; Organisk kemi;

   Abstract : As the field of organocatalysis is growing, it is becoming more important to understand the specific modes of action of these new organic catalysts. Quantum chemistry, in particular density functional theory, has proven very powerful in exploring reaction mechanisms as well as selectivities in organocatalytic reactions, and is the tool used in this thesis. READ MORE

6. 4. Quantum Chemical Cluster Modeling of Enzymatic Reactions

   Author : Rongzhen Liao; Fahmi Himo; Robert Deeth; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; cluster approach; density functional theory; B3LYP; enzyme; mechanism; dinuclear; trinuclear; zinc; tungsten; hydrolysis; decarboxylation; formaldehyde oxidation; hydration; methyl transfer; Quantum chemistry; Kvantkemi; organisk kemi; Organic Chemistry;

   Abstract : The Quantum chemical cluster approach has been shown to be quite powerful and efficient in the modeling of enzyme active sites and reaction mechanisms. In this thesis, the reaction mechanisms of several enzymes have been investigated using the hybrid density functional B3LYP. READ MORE

7. 5. Quantum chemical studies of radical enzymes

   Author : Fahmi Himo; Robert J Deeth; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical Physics; teoretisk fysik;

   Abstract : .... READ MORE