Search for dissertations about: "carbonyl"

Showing result 16 - 20 of 152 swedish dissertations containing the word carbonyl.

  2. 16. Stereoselective Synthesis of Amino Alcohols : Applications to Natural Product Synthesis

    Author : Staffan Torssell; Peter Somfai; Pher G Andersson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Amino alcohol; asymmetric 1.3-dipolar cycloaddition; azomethine ylide; carbenoid; carbonyl ylide; cross-metathesis; omuralide; oxazolidine; rhodium; sphingosine; stemoamide; stereoselective synthesis; total synthesis.; Organic chemistry; Organisk kemi;

    Abstract : This thesis is divided into four separate parts with amino alcohols as the common feature. The first part of the thesis describes the development of an efficient three-component approach to the synthesis of α-hydroxy-β-amino esters. READ MORE

  4. 17. Amino Aacohols : stereoselective synthesis and applications in diversity-oriented synthesis

    Author : Staffan Torssell; Peter Somfai; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; amino alcohol; carbenoid; carbonyl ylide; cross-metathesis; diastereoselective; 1; 3-dipolar cycloaddition; sphingosine; Organisk kemi; Organic chemistry; Organisk kemi;

    Abstract : This thesis is divided into three separate parts with amino alcohols as the common feature. The first part describes the development of a novel three-component approach to the synthesis of α-hydroxy-β-amino esters. READ MORE

  5. 18. Olefins from carbonyls : Development of new phosphorus-based cross-coupling reactions

    Author : Nicolas Daniele D'Imperio; Sascha Ott; Carlos Romero-Nieto; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; olefins; carbonyl olefination; phosphaalkenes; stereoselective synthesis; Wittig; Horner-Wadsworth-Emmons; McMurry;

    Abstract : Olefins, compounds containing C=C double bonds, are omnipresent in nature and serve as useful starting materials for various chemical modifications. Olefins are of crucial importance in Medicinal Chemistry and are also present in essential objects like dyes, polymers and plastics. READ MORE

  6. 19. Gene expression in buccal keratinocytes with emphasis on carbonyl metabolism

    Author : Claudia A Staab; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The inner lining of the cheek, the buccal mucosa, is a target for air-borne, dietary and tobacco usage-derived carcinogens, but also interesting from a drug delivery point of view. Cancer arising in the buccal epithelium, buccal squamous cell carcinoma (BSCC), often diagnosed at a late disease stage, is highly aggressive and recurrent, emphasizing the need for novel approaches in diagnosis and therapy. READ MORE

  7. 20. Transition Metal-Mediated Selective Functionalizations of Bio-Derived Building Blocks

    Author : Petter Dunås; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phenols; Heck reaction; microbial arene oxidation; green chemistry; domino reactions; chirality transfer; palladium; metal carbonyl; azulenes; renewable resources; iron;

    Abstract : In order to transition to a more sustainable chemical industry, it is necessary to replace the fossil starting materials that are largely used today with renewable ones. Starting materials available from abundant natural sources, or which can be efficiently produced via a biotransformation, are of high interest in this regard. READ MORE