Blar i Institutt for kjemi på utgivelsesdato
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Biological reductions and esterifications for the production of enantiopure secondary alcohols : chemo-enzymatic synthesis of chiral building blocks with sulphur-containing rings
(Doktoravhandlinger ved NTNU, 1503-8181, Doctoral thesis, 2003)Both enantiomers of 1-(1,3-dithian-2-yl)-2-propanol ( 5 ) 1-(1,3-dithiolan-2-yl)-2- propanol (6), and halogenated derivatives of 5 was obtained by microbial reductions and lipase catalyzed esterifications. (2S)-1-(1,3-di ... -
Nitropyridines in Organic Synthesis. 2.5-Disubstituted Pyridine Compounds
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:34, Doctoral thesis, 2004)The goal of this project was to explore how 5-nitropyridine-2-sulfonic acid (18) and its potassium salt (18a) could be utilised as starting materials for 2,5- substituted pyridines. Compounds 18/18a were prepared by oxidation ... -
Chemical and Spectroscopic Studies of Carotenoids and Related Compounds
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:93, Doctoral thesis, 2004)Structure elucidation of charge delocalised carotenoid mono- and dications by NMR and VIS/NIR spectroscopy. Studies of the nucleophilic reactions of these cations. Studies of the β,β-carotene-iodine complex. Isolation and ... -
Effect of surfactant structure on properties of oil/water interfaces: A coarse-grained molecular simulation study.
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:142, Doctoral thesis, 2004)The elastic properties of oil/water/surfactant interfaces play an important role in the phase behaviour of microemulsions and for the stability of macroemulsions. The aim of this thesis is to obtain an understanding of ... -
Minimization of entropy production in separate and connected process units
(Dr. ingeniøravhandling, 0809-103X; 2004:111, Doctoral thesis, 2004) -
Rational design of protein inhibitors using molecular modelling and multivariate analysis
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:59, Doctoral thesis, 2004)Cancer cells utilise signalling cascades involving protein kinases for their growth and survival. Hence, design of protein inhibitors that block the function of these signalling proteins is interesting for the development ... -
Synthesis of enantiopure building blocks for biologically active compounds by enzyme catalysis. Optimizing reaction conditions for increased enantioselectivity and activity
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:50, Doctoral thesis, 2004)Efficient methods for synthesis of enantiomerically pure enantiomers of a series of secondary alcohols and butanoates have been performed by kinetic resolution of the racemic alcohols and esters catalyzed by lipase B from ... -
Biochemical impacts of transition metals in the king bolete (Boletus edulis)
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:166, Doctoral thesis, 2004)The present thesis investigates the reciprocal relationship between metals and wild-growing macromycetes. An inter-diciplinary approach was needed in order to reveal, on the molecular level, how these organisms respond to, ... -
Ellen Gleditsch : professor, radiochemist, and mentor
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:117, Doctoral thesis, 2005) -
Synthesis and Physical Properties of Hydrophilic Carotenoid Derivatives
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:20, Doctoral thesis, 2005) -
HPLC Analysis of Aliphatic Sulfonate Surfactants using Ion-Pair Detection
(Journal article; Peer reviewed, 2005)A method was developed for the analysis of a number of surfactants which contained no UV-chromophores, using RP-HPLC with Indirect Photometric Detection, IPD. Pyridinium salts such as N-methylpyridinium iodide, ... -
X-ray absorption spectroscopic studies on active metal sites in zeotypes during the selective catalytic reduction of NOx with propene in an oxygen rich atmosphere
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:130, Doctoral thesis, 2005)This thesis is concerned with the synthesis and characterisation of CuAPO-5, CuSAPO-5 and also copper ion-exchanged SAPO-5, SAPO-11 and ZSM-5. The ability of these materials to catalyse the selective reduction of NOx using ... -
Synthesis of Hydroxy Sulfonate Surfactants
(Journal article; Peer reviewed, 2005)The selective synthesis of sulfonate surfactants with side chains containing ether- and hydroxy groups was carried out using cyclic sulfates as epoxide analogues. The main chain was elaborated from 1,2-dodecane sulfate ... -
Immobilization does not influence the enantioselectivity of CAL-B catalyzed kinetic resolution of secondary alcohols
(Journal article; Peer reviewed, 2005)Decreasing enantioselectivity (E-value) by conversion has been observed in transesterification reactions of secondary alcohols catalyzed by a pure protein formulation of lipase B from Candida antarctica (Novozym 525 F). ... -
Investigation of selected natural and anthropogenic radionuclides in reindeer (Rangifer tarandus tarandus) and lynx (Lynx lynx)
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:151, Doctoral thesis, 2005)The present thesis investigates a range of dietary, physiological and environmental factors influencing transfer and long-term behaviour of radionuclides in reindeer and lynx. Feeding experiments were designed to provide ... -
Laks og Gyrodactylus i Vefsna og Driva. Årsrapport 2004
(NINA rapport;34, Research report, 2005)Formålet med dette prosjektet er å øke kunnskapen om effekter av lakseparasittenG. sa-laris i vassdrag som har vært infisert i lang tid, særlig med hensyn til forekomsten av lang-tidsverter og mulige endringer i ... -
A study of carbonaceous aerosols in the Norwegian environment, focusing on the water-soluble organic carbon fraction
(Doctoral thesis, 2005)The aim of the present thesis was to study the carbonaceous fraction of ambient aerosols in the Norwegian environment, with a particular focus on the water-soluble carbonaceous fraction. Studies were based on bulk and ... -
Carbonaceous materials for single-use sensors. Quality assessment by electrochemical impedance spectrometry
(Chapter, 2005)An overview of achievements and prospects of electrochemical impedance spectrometry (EIS) application for characterizing the surface of the carbon paste electrode (CPE) is emphasized. Several guidelines are pointed out and ... -
Nitropyridine carbamates, amides and carboxylates in heterocyclic chemistry
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:44, Doctoral thesis, 2006)Based on new methodology for nitration of pyridine and pyridine derivatives developed at our department by Professor Jan Bakke and coworkers at NTNU, a whole range of substituted nitropyridines are now readily available. ... -
A simple synthetic route to methyl 3-fluoropyridine-4-carboxylate by nucleophilic aromatic substitution
(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.