• A simple synthetic route to methyl 3-fluoropyridine-4-carboxylate by nucleophilic aromatic substitution 

      Tjosås, Freddy; Fiksdahl, Anne (Journal article; Peer reviewed, 2006)
      The nitro group of methyl 3-nitropyridine-4-carboxylate (1) has successfully been replaced by fluoride anion via nucleophilic aromatic substitution to give the 3-fluoropyridine- 4-carboxylate 2.
    • Aminoalkyl-functionalized pyridines as high cyclic capacity CO2 absorbents 

      Evjen, Sigvart; Løge, Oda Siebke; Fiksdahl, Anne; Knuutila, Hanna K (Journal article; Peer reviewed, 2019)
      Recent years have witnessed a growing academic interest in development of new CO2 capture solvents to reduce the capture costs. This study focused on nine picolylamines (three commercial and six synthesized) and one ...
    • Au(III) complexes with tetradentate-cyclam-based ligands 

      Holta, Ann Christin Reiersølmoen; Solvi, Thomas Nordbø; Fiksdahl, Anne (Peer reviewed; Journal article, 2021)
      Chiral cyclam (1,4,8,11-tetraazacyclotetradecane) derivatives were synthesized stepwise from chiral mono-Boc-1,2-diamines and (dialkyl)malonyl dichloride via open diamide-bis(N-Boc-amino) intermediates (65–91%). Deprotection ...
    • Catalytic Activity of trans-​Bis(pyridine)​gold Complexes 

      Holta, Ann Christin Reiersølmoen; Csokas, Daniel; Øien-Ødegaard, Sigurd; Vanderkooy, Alan; Gupta, Arvind Kumar; Carlsson, Anna-Carin C.; Orthaber, Andreas; Fiksdahl, Anne; Pàpai, Imre; Erdélyi, Máté (Peer reviewed; Journal article, 2020)
      Gold catalysis has become one of the fastest growing fields in chemistry, providing new organic transformations and offering excellent chemoselectivities under mild reaction conditions. Methodological developments have ...
    • Catalytic studies of cyclometalated gold(III) complexes and their related UiO-67 MOF 

      Levchenko, Vladimir; Siah, Huey-San Melanie; Øien-Ødegaard, Sigurd; Kaur, Gurpreet; Fiksdahl, Anne; Tilset, Mats (Peer reviewed; Journal article, 2020)
      Cyclometalated gold(III) complexes Au(L)(OAcF)2 (L = phenylpyridine dicarboxylic diester (ppyde) or phenylpyridine dicarboxylic acid (ppydc)) have been prepared reacting Au(OAc)3 with corresponding phenyl pyridines (ppyde ...
    • Degradation of Amines 

      Johansen, Maren Teresa (Master thesis, 2013)
      In view of the rising amounts of greenhouse gases in the atmosphere, preventing CO2 emissions has become increasingly important. The combustion of fossil fuels for energy production and transportation is a large contributor ...
    • Degradative behavior and toxicity of alkylated imidazoles 

      Evjen, Sigvart; Åstrand, Ove Alexander Høgmoen; Gaarder, Mona; Paulsen, Ragnhild Elisabeth; Fiksdahl, Anne; Knuutila, Hanna K (Journal article; Peer reviewed, 2020)
      The thermal and oxidative degradation behavior and the corrosiveness of imidazole (Im), 2-methylimidazole (2MIm), 2-ethyl-4-methylimidazole (2E4MIm), 2,4,5-trimethylimidazole (2,4,5MIm), and 1,2,4,5-tetramethylimidazole ...
    • Development of Chiral Gold(III)-complexes and Studies of Their Catalytic Activity 

      Østrem, Elise (Master thesis, 2018)
      The purpose of this master project was to synthesise chiral ligands and coordinate these to gold(III), thereby developing novel chiral gold(III)-complexes. These complexes were then used as gold-catalysts in cyclopropanation ...
    • Dual-gold(I)-generated trifluoromethylation of terminal alkynes With Togni’s reagent 

      Siah, Huey-San Melanie; Fiksdahl, Anne (Journal article; Peer reviewed, 2017)
      The interaction of a Au(I) catalyst (JohnPhosAu(I)-MeCN/SbF6) and the Togni’s reagent 1, as a source of electrophilic trifluoromethyl group, has been studied in order to develop gold-catalysed alkyne trifluoromethylation ...
    • Fremstilling av et kiralt triazoliumbasert NHC-salt og anvendelse i asymmetrisk syntese 

      Solvang, Tina (Master thesis, 2011)
      Et kiralt triazoliumbasert N-heterosykliskkarben-salt (NHC) 1 har blitt fremstilt fra L-fenylalanin 2 og fenylhydrazinhydroklorid 12 i en synteserute som går over fem trinn, og med et totalutbytte på 10%. NHC-salt 1 er ...
    • Fremstilling av propargylestere og anvendelse i gullkatalyserte reaksjoner 

      Tungen, Jørn Eivind (Master thesis, 2011)
      Hovedmålet i masteroppgaven har vært å utforske nye gullkatalyserte reaksjoner og anvendelser av propargylestere og allenestere. Allen 14, ble syntetisert fra propargylbromid over to trinn, ved en kjent prosedyre. Kationiske ...
    • Fuel oil desulfurization with dual functionalized imidazolium based ionic liquids 

      Butt, Hussain Shakeel; Chellappan, Lethesh Kallidanthiyil; Fiksdahl, Anne (Peer reviewed; Journal article, 2020)
      A series of 36 dual functionalized N-(poly)ethylen glycol N-allyl-/N-benzyl imidazolium and benzimidazolium ILs were synthesized for extractive desulfurization studies (EDS). The novel ILs were readily prepared from imidazole ...
    • Gold Complex Preparation, Catalysis and Catalyst Activation 

      Jónsson, Helgi Freyr (Doctoral theses at NTNU;2022:195, Doctoral thesis, 2022)
      Gold complexes and salts have proven to be exceptional catalysts for the activation of carbon-carbon multiple bonds towards nucleophilic attack. Gold catalysts allow for the synthesis of complex products under mild conditions. ...
    • Gold(I) Catalyzed Tandem Cyclization Reactions 

      Rajinder Kaur, Maya (Master thesis, 2012)
      Through this study it has been observed that in contrast to propargyl esters which give cyclopropyl products, the high reactivity of propargyl acetals allows a new tandem cyclization to take place, resulting in bicyclic ...
    • Gold(I) Catalyzed Tandem Cyclization Reactions with Propargyl Acetals 

      Hogsnes, Morten Christian (Master thesis, 2013)
      The main goal of this thesis has been to further explore gold(I) catalyzed cyclization reactions including propargyl acetals. Gold(I) catalysts have a strong affinity to triple bonds, and alkyne-gold complexes are readily ...
    • Gold(III) Complexes: Ligand Design and Catalytic Properties 

      Reiersølmoen, Ann Christin (Doctoral theses at NTNU;2020:264, Doctoral thesis, 2020)
      Gold catalysis has become one of the fastest growing fields in organic chemistry, providing new transformations and offering excellent chemoselectivities at mild reaction conditions. So far, the main focus within Au(III) ...
    • Gold(III)‐Catalysed cis‐to‐trans Cyclopropyl Isomerization 

      Reiersølmoen, Ann Christin; Østrem, Elise; Fiksdahl, Anne (Journal article; Peer reviewed, 2018)
      Novel chiral gold(III) complexes, based on bisoxazoline (BOX) and 2‐pyridyl‐(–)menthol ligands, were prepared and characterised (X‐ray), and their catalytic properties in cyclopropanation reactions of propargyl esters with ...
    • High-Capacity Amine-Imidazole Solvent Blends for CO2 Capture 

      Evjen, Sigvart; Fiksdahl, Anne; Knuutila, Hanna K (Journal article; Peer reviewed, 2019)
      The CO2 absorption performance of aqueous solvent blends containing four imidazoles (2-MeIm, 2-Et-4-MeIm, 2,4,5-MeIm and 1,2,4,5-MeIm) and four promoters (MEA, DEA, PZ, and MAPA) were investigated using a small-scale ...
    • Hydroxyl Functionalized Pyridinium Ionic Liquids: Experimental and Theoretical Study on Physicochemical and Electrochemical Properties 

      Kallidanthiyil Chellappan, Lethesh; Venkatraman, Vishwesh; Fiksdahl, Anne; Evjen, Sigvart (Journal article; Peer reviewed, 2019)
      Structurally modified hydroxyl functionalized pyridinium ionic liquids (ILs), liquid at room temperature, were synthesized and characterized. Alkylated N-(2-hydroxyethyl)-pyridinium ILs were prepared from alkylpyridines ...
    • In silico prediction and experimental verification of ionic liquid refractive indices 

      Venkatraman, Vishwesh; Jaganathan, Joshua Raj; Evjen, Sigvart; Kallidanthiyil Chellappan, Lethesh; Fiksdahl, Anne (Journal article; Peer reviewed, 2018)
      Ionic liquids (ILs) have seen increasing use as environmentally friendly solvents in a wide array of applications from energy to pharmaceuticals. Among the many properties of interest, the refractive index, is of considerable ...