Sökning: "Enamines"

Visar resultat 6 - 10 av 13 avhandlingar innehållade ordet Enamines.

  1. 6. Catalytic Hydrosilylation of Amides

    Författare :Alexey Volkov; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis, different protocols and approaches are described for thehydrosilylation of tertiary amides to amines or enamines. The development of simple andeffective methods for the production of amines from amides is of great importance to bothacademic and industrial users, since the final product represents a valuable building blockfor fine and bulk chemicals. LÄS MER

  3. 7. Transformations of Nitrosoarenes and Alkynyl Enones : Selective Synthesis of Nitrogen-Containing Compounds

    Författare :Angela van der Werf; Nicklas Selander; Gary A. Molander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alkynyl enones; catalysis; copper; halogenation; heterocycles; nitrosoarenes; perfluoroalkylation; trifluoromethylation; organisk kemi; Organic Chemistry;

    Sammanfattning : The nitrogen atom plays a unique role in organic chemistry. It is abundantly found in organic materials and is responsible for the activity of many biologically relevant compounds. LÄS MER

  4. 8. Studier av 2-cykloaminoindener speciellt med hänsyn till prototropa omlagringar

    Författare :Ulf Edlund; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is a short review of six papers (Papers 1-6,page 5) concerning studies of enamines from 2-indanones. The unusually stable 2-(N-pyrrolidyl)indene has been studied (Paper 2 ). As a base catalyst this enamine rearranges 1-methylindene to 3-methylindene with a lower rate constant compared with triethylamine. LÄS MER

  5. 9. Cyanoacetylation of indoles, pyrroles and amines, and synthetic uses of these products

    Författare :Johnny Slätt; Jan Bergman; David Erlinge; Tomas Hedner; Michael Begtrup; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Indole; pyrrole; reduction; oxidation; indoline; acylation; cyanoacetylation;

    Sammanfattning : This thesis is based on an organic synthetic project aimed towards development of small molecules acting on the P2 receptor as well as development of synthetic methods to such molecules (primarily indoles and featuring isatogens in particular). The new methodology includes cyanoacetylation of indoles, pyrroles, amines, and enamines using cyanoacetic acid in acetic anhydride. LÄS MER

  7. 10. Direct Amino Acid-Catalyzed Enantioselective α-Oxidation Reactions and Asymmetric de novo Synthesis of Carbohydrates

    Författare :Magnus Engqvist; Armando Cordova; Christina Moberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organo catalysis; Organic chemistry; Organisk kemi;

    Sammanfattning : The ability of amino acids to form nucleophilic enamines with aldehydes and ketones has been used in the development of asymmetric α-oxidation reactions with electrophilic oxidizing agents. Singlet molecular oxygen has for the first time been asymmetrically incorporated into aldehydes and ketones, and the products were isolated as their corresponding diols in good yields and ee’s. LÄS MER