Sökning: "peter hammar"

Hittade 2 avhandlingar innehållade orden peter hammar.

  1. 1. Quantum Chemical Studies of Enantioselective Organocatalytic Reactions

    Författare :Peter Hammar; Fahmi Himo; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DFT; enantioselective; asymmetric; organocatalysis; Theoretical chemistry; Teoretisk kemi;

    Sammanfattning : Density Functional Theory is used in order to shed light on the reaction mechanisms and the origins of stereoselectivity in enantioselective organocatalytic reactions. The reactions investigated are the dipeptide-catalyzed aldol reaction, the cinchona thiourea-catalyzed nitroaldol reaction and the prolinol derivative-catalyzed hydrophosphination reaction. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER