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  • 1.
    Al-Maharik, N
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Engman, L
    Malmstrom, J
    Schiesser, CH
    Intramolecular homolytic substitution at selenium: Synthesis of novel selenium-containing vitamin E analogues2001In: JOURNAL OF ORGANIC CHEMISTRY, ISSN 0022-3263, Vol. 66, no 19, p. 6286-6290Article in journal (Refereed)
    Abstract [en]

    Treatment of 1-(benzylselenenyl)-5-butyl-5-nonanoI (10) with oxalyl chloride followed by the sodium salt of N-hydroxypyridine-2-thione afforded the corresponding pyridine-2-thione-N-oxycarbonyI (PTOC) oxalate ester which was not isolated but immediately h

  • 2.
    Antoni G., Amschler H., Zech K., Långström B.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Synthesis of [18F]labelled roflumilast using difluoro[18F]bromo methane as alkylating agent2001In: Synthesis and Applications of Isotopically LabelledArticle in journal (Refereed)
  • 3.
    Antoni G., Ögren M., Långström B.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Enzymes as catalysts in labelling synthesis using short-lived radionuclides2001In: Synthesis and Applications of Isotopically LabelledArticle in journal (Refereed)
  • 4.
    Antoni, Gunnar
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Omura, H
    Ikemoto, M
    Moulder, R
    Watanabe, Y
    Långström, B
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Biochemistry and Organic Chemistry.
    Enzyme catalysed synthesis of L-(4-11C) aspartate and L-(5-11C) glutamate2001In: J. Labbelled Compd. Radiopharm.Article in journal (Other academic)
  • 5.
    Aranyos, Viviane
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Hjelm, Johan
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry.
    Hagfeldt, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry.
    Grennberg, Helena
    Free-base tetra-arylphthalocyanines for dye-sensitised nanostructured solar cell applications2001In: JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, ISSN 1088-4246, Vol. 5, no 8, p. 609-616Article in journal (Refereed)
    Abstract [en]

    Adsorption of phthalocyanines lacking conventional attaching substituents onto nanostructured TiO2 electrodes has been studied, and some of the important factors for sensitisation have been identified. Tetra-dimethoxyphenyl phthalocyanine (2) and tetra-ph

  • 6.
    Arvidsson P., Frackenpohl J., Ryder N., Liechty B., Petersen F., Zimmermann H., Camenisch G., Woessner R., Seebach D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    On the antimicrobial and hemolytic activities of amphiphilic B-peptides.2001In: ChemBioChem, no 2(10), p. 771-773Article in journal (Refereed)
  • 7.
    Arvidsson P., Ruepling M., Seebach D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Design, machine synthesis, and NMR-solution structure of a B-heptapeptide forming a saltbridge stabilized 314-helix in methanol and in water2001In: Chemical Communications (Cambridge, U K), p. 649-650Article in journal (Refereed)
  • 8.
    Bergquist, J
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Gobom, J
    Blomberg, A
    Roepstorff, P
    Ekman, R
    Identification of nuclei associated proteins by 2D-gel electrophoresis and mass spectrometry2001In: J. Neurosci. Meth., no 109, p. 3-11Article in journal (Refereed)
  • 9.
    Bergson, G., Matsson, O.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Daniel Strömholm, The Svedberg och isotoperna2001In: Acta Academica Regiae Scientiarum Upsaliensis, ISSN ISBN 91-85832-14-6, Vol. 21, p. 53-60Article in journal (Other scientific)
  • 10.
    Berlin, Stefan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Construction of Five-Membered Heterocycles via Radical Cyclization2001Licentiate thesis, monograph (Other scientific)
  • 11. Bertilsson, S. K.
    et al.
    Ekegren, J. K.
    Modin, S. A.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Andersson, P. G.
    The aza-Diels-Alder reaction protocol - a useful approach to chiral, sterically constrained alpha-amino acid derivatives2001In: Tetrahedron, ISSN 0040-4020, Vol. 57, no 30, p. 6399-6406Article in journal (Refereed)
  • 12.
    Bertilsson, SK
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Ekegren, JK
    Modin, SA
    Andersson, PG
    The aza-Diels-Alder reaction protocol - a useful approach to chiral, sterically constrained alpha-amino acid derivatives2001In: TETRAHEDRON, ISSN 0040-4020, Vol. 57, no 30, p. 6399-6406Article in journal (Refereed)
    Abstract [en]

    Different types of polycyclic alpha -amino acid derivatives are prepared from chiral imines by using well-established aza-Diels-Alder reaction conditions. Simply by varying the diene moiety, different products such as spirocyclic compounds 8 and 9, anthra

  • 13.
    Bertilsson, Sophie
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Asymmetric Formation and Isomerization of Three-Membered Rings: Catalyst Development and Evaluation2001Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Enantiopure α-amino acid derivatives were prepared using a protocol which allows for highly controlled regio- and chemoselectivity in the hydrogenation/ hydrogenolysis of aza-Diels-Alder adducts. One of the resulting α-amino esters, (1S,3R,4R)-2-azabicyclo[2.2.1]heptane-3-carboxylic acid ethyl ester, was utilized further as a catalyst precursor.

    Significant improvements were achieved in the asymmetric lithium amide-mediated epoxide rearrangement reaction. An efficient catalytic system was developed, based on 5 mol% of (1S,3R,4R)-3-(amino)methyl-2-azabicyclo[2.2.1]heptanes and stoichiometric amounts of lithium diisopropylamide (LDA). With pyrrolidine or (2R,5R)-dimethylpyrrolidine as the amine moiety, the isomerization into allylic alcohols was accomplished for 5–7-membered cycloalkene oxides and (Z)-octene oxide with yields of >90% and enantioselectivities up to 99% ee. The studies indicate that the active catalyst species is a monomer, which is in equilibrium with inactive aggregates. The addition of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) led to a reaction rate acceleration. In the catalytic reaction, where there is a competing LDA-mediated rearrangement, the presence of DBU also improved the enantioselectivity.

    Furthermore, the asymmetric addition of carbenes and nitrenes to olefins was investigated. N,N'- and N,O-oxazolines were evaluated as ligands in the Cu-catalyzed aziridination of alkenes. Two of the oxazolines formed highly active catalysts (90% yield). However, the enantioselectivity was moderate (≤34% ee). Another catalyst, tetrakis-[(1S,3R,4R)-2-(p-tert-butylbenzene)sulphonyl-2-azabicyclo[2.2.1]heptane-3-carboxylate]dirhodium(II) was prepared and successfully applied in the reaction of styrenes and cyclic enol ethers with phenyl- and vinyldiazoacetates, affording cyclopropanes in up to 95% yield and 92% ee. In contrast to earlier observations, the best results were obtained with electron-rich olefins.

  • 14.
    Bohl E, Carlsson J, Edwards K, Sjöberg S, Gedda L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    SLT-particles for twostep targeting in boron neutron capture therapy2001In: Frontiers in neutron capture therapy, p. 1069-1075Article in journal (Other scientific)
  • 15.
    Bonasera T., Grue-Sorensen G., Ortu G., Binderup E., Bergström M., Björkling F., Långström B.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    The Synthesis of [26,27-11C]dihydroxyvitam in D3, a tracer for positron emission tomography (PET)2001In: Bioorganic & Medical Chemistry, no 9(12), p. 3123-312Article in journal (Refereed)
  • 16.
    Bratt K, Sunnerheim K., Nordenhem H., Nordlander G., Långström B.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Pine Weevil (Hylobius abietis) Antifeedants from Lodgepole Pine (Pinus contorta)2001Article in journal (Other scientific)
  • 17.
    Brink, M
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Mollerstedt, H
    Ottosson, CH
    Characteristics of the electronic structures of diabatically and adiabatically Z/E-isomerizing olefins in the T-1 state2001In: JOURNAL OF PHYSICAL CHEMISTRY A, ISSN 1089-5639, Vol. 105, no 16, p. 4071-4083Article in journal (Refereed)
    Abstract [en]

    Nonlocal gradient-corrected and hybrid density functional theory (DFT) have been used to calculate T1 potential energy surfaces (PES), spin densities, and geometries of ethylene and aromatic olefins of various sizes: ethylene (1), styrene (2), stilbene (3

  • 18.
    Bylund, D
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Danielsson, R
    Markides, KE
    Peak purity assessment in liquid chromatography-mass spectrometry2001In: JOURNAL OF CHROMATOGRAPHY A, ISSN 0021-9673, Vol. 915, no 1-2, p. 43-52Article in journal (Refereed)
    Abstract [en]

    Fixed-size moving window evolving factor analysis and base peak chromatograms have been used for peak purity detection in data generated with LC-MS. The two methods were evaluated with both real and simulated data and were found to be fast and complementa

  • 19.
    Bylund, Dan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Chemometric Tools for Enhanced Performance in Liquid Chromatography-Mass Spectrometry2001Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Liquid chromatography-mass spectrometry (LC-MS) has become an important analytical on-line technique, capable of producing large amounts of data with high selectivity and sensitivity. Optimal use of the sophisticated instrumentation can be attained if the analytical chemists are guided to perform the proper experiments and to extract the useful information from the acquired data. In this thesis, strategies and methods concerning these two issues are presented.

    LC-MS method development will benefit from fundamental understanding of the processes involved. An experimental procedure was designed to determine the coefficients in a model for the electrospray process. By relating these coefficients to the experimental conditions, the influence on signal level and sensitivity for presence of matrix compounds was studied.

    For the optimization of LC-MS methods, strategies based on empirical modelling were worked out. Comparisons were made between artificial neural network (ANN) modelling and linear modelling tools, and a genetic algorithm was implemented to explore the ANN models.

    Visual interpretation and multivariate analysis of LC-MS data is hampered by background signals and noise, and a digital filter for background suppression and signal-to-noise improvement was developed. It is also important to indicate the presence of overlapping peaks, and a strategy for the assessment of peak purity was therefore worked out. These methods and several established methods were implemented in an add-on program (LC-MS Toolbox 1.0) for information extraction of LC-MS data.

    Ultimately, the data produced with LC-MS can be separated into the mass spectra, the elution profiles and the concentrations of the analytes, e.g. with PARAFAC modelling. The trilinear data structure assumed may, however, be distorted by variations in the LC conditions causing retention time shifts. An improved algorithm for time warping that can compensate for some of these deviations was worked out, and its performance as a pre-processing tool for PARAFAC was examined.

  • 20.
    Cheng, Aiping
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Syntheses of 11C and 76Br labeled compounds via organostannanes using the Stille cross-coupling reaction and oxidative bromination2001Licentiate thesis, monograph (Other scientific)
  • 21.
    Cosquer, Guirec Y., Wang J., Naeslund C., Adams D.M., Ji W., Zhuo J-C., Anisuzzaman A.K.M.,Sjöberg S., Barth R.F., Eriksson S., Tjarks W.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Synthesis and biological evaluation of carboranyl thymidines for BNTC2001In: 221st MEDI-151, p. 151-Article in journal (Other scientific)
    Abstract [en]

    221 st MEDI-151

  • 22.
    Enblad P., Frykholm P., Valtysson J., Silander H C., Andersson J., Fasth K J., Watanabe Y., Långström B., Hillered L., Persson L.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Middle cerebral artery occlusion and reperfusion in primates monitored by microdialysis and sequential positron emission tomography2001In: Stroke, no 32 (7), p. 1574-80Article in journal (Refereed)
  • 23.
    Engman, L.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Antioxidative Properties of Organotellurium Compounds2001Article in journal (Other scientific)
  • 24.
    Engman L., Kanada T., Gallegos A., Williams R., Powis G.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Water-soluble organotellurium compounds inhibit thioredoxin reductase and the growth of human cancer cells2001In: Anti-Cancer Drug Design, Vol. 2000, no 1, p. 330-Article in journal (Refereed)
  • 25.
    Enierga, G
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Espiritu, M
    Perlmutter, P
    Pham, N
    Rose, M
    Sjoberg, S
    Thienthong, N
    Wong, K
    Intramolecular amidomercurations under allylic control: a stereoselective synthesis of (+)-pseudohygroline and (+)-3-hydroxypyrrolizidine2001In: TETRAHEDRON-ASYMMETRY, ISSN 0957-4166, Vol. 12, no 4, p. 597-604Article in journal (Refereed)
    Abstract [en]

    The diastereoselectivity of intramolecular amidomercurations can be reversed by altering the remote allylic substituent of omega -alkenylcarbamates. This methodology has been applied to the synthesis of (+)-pseudohygroline and (+)-3-hydroxypyrrolizidine.

  • 26.
    Erdélyi, Máté
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry, Organic Chemistry.
    Gogoll, Adolf
    Rapid Homogeneous-Phase Sonogashira Coupling Reactions Using Controlled Microwave Heating2001In: Journal of Organic Chemistry, Vol. 66, no 12, p. 4165-4169Article in journal (Refereed)
  • 27.
    Ericsson, C
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Engman, L
    Diastereocontrol by trialkylaluminums in the synthesis of tetrahydrofurans via radical cyclization2001In: ORGANIC LETTERS, ISSN 1523-7060, Vol. 3, no 22, p. 3459-3462Article in journal (Refereed)
    Abstract [en]

    [GRAPHICS] The influence of various Lewis acids in the radical cyclization of beta -allyloxyalkyl phenyl selenides was investigated. Whereas the unperturbed cyclization afforded trans-2,4-disubstituted tetrahydrofurans as the major products (cis/trans app

  • 28.
    Ericsson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry, Organic Chemistry.
    Engman, Lars
    Diastereocontrol by Trialkylaluminums in the Synthesis of Tetrahydrofurans via Radical Cyclisation2001In: Organic Letters, Vol. 3, p. 3459-Article in journal (Refereed)
  • 29.
    Ericsson, D
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Ekstrom, S
    Nilsson, J
    Bergquist, J
    Marko-Varga, G
    Laurell, T
    Downsizing proteolytic digestion and analysis using dispenser-aided sample handling and nanovial matrix-assisted laser/desorption ionization-target arrays2001In: PROTEOMICS, ISSN 1615-9853, Vol. 1, no 9, p. 1072-1081Article in journal (Refereed)
    Abstract [en]

    An efficient technique for enzymatic digestion of proteins in nanovial arrays and identification by peptide mass fingerprinting using matrix-assisted laser desorption/ionization (MALDI-MS) is presented in this work. Through dispensing of a protein solutio

  • 30.
    Ericsson, D.
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Ekström, S.Nilsson, J.Bergquist, JonasUppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry, Analytical Chemistry.Marko-Varga, G.Laurell, T.
    Dispenser-aided nanodigestion for rapid protein identification in MALDI-TOF nanovial arrays2001Conference proceedings (editor) (Other academic)
  • 31.
    Eriksson, A
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Nyholm, L
    Coulometric and spectroscopic investigations of the oxidation and reduction of some azosalicylic acids at glassy carbon electrodes2001In: ELECTROCHIMICA ACTA, ISSN 0013-4686, Vol. 8, no 496, p. 1113-1129Article in journal (Refereed)
    Abstract [en]

    Constant potential coulometry in combination with cyclic voltammetry, UV-Vis, H-1 and C-13 NMR spectroscopy were used to identify the oxidation and reduction products for some structurally similar azosalicylic acids, including the azosalicylic drugs Sulfa

  • 32.
    Eriksson, Alf
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Voltammetric properties of olsalazine sodium and some related compounds2001Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The voltammetric properties of Olsalazine sodium, seven other azosalicylic acids and the azoxy analogue of Olsalazine sodium have been studied in aqueous solutions mainly by cyclic voltammetry and constant potential coulometry. It was found that these compounds can all be both reduced and oxidised at a glassy carbon electrode. The reduction and oxidation potentials of the compounds were dependent on the pH and the structure of the compounds. All compounds, except 4,4'-azobis-(2-hydroxybenzoic acid), were reduced to the corresponding amino salicylic acids in a 4 e-, 4 H+ reaction, as shown by spectrophotometric and voltammetric investigations of the reduced solutions. A further electrochemical characterisation of the formed reduction products 3-, 4- and 5-aminosalicylic acid was also carried out.

    It was found that the oxidation of the investigated azo compounds occurs according to two different pathways. Compounds with, at the most one hydroxyl group in the 2- or 4- position were shown to be irreversibly oxidised while Olsalazine sodium, its azoxy analogue and 2-hydroxy-5-[(3'-carboxy-2'-hydroxyphenyl)azo]benzoic acid disodium salt were oxidised in a reversible 2e-, 2H+ reaction. The oxidation product of Olsalazine sodium was characterised by UV/VIS and NMR spectroscopic methods and a structure for the oxidation product was proposed. The oxidative properties of Olsalazine sodium were also utilised to determine nM concentrations of this compound by liquid chromatography with electrochemical detection (LCEC).

  • 33.
    Fernández F.M., Rodriguez N., Vadillo J.M., Wetterhall M., Markides K.E., Engelke F., Kimmel J.R., Zare R.N.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Evaluation of the signal to noise ratio in a Hadamard transform time-of-flight mass spectrometer2001In: J. of American Society for Mass Spectrometry, Vol. 12, no 12, p. 1302-1311Article in journal (Refereed)
  • 34.
    Frackenpohl J., Arvidsson P., Schreiber J., Seebach D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    The outstanding biological stability of B- and Y-peptides toward proteolytic enzymes: an in vitro nvestigation with fifteen peptidases2001In: ChemBioChem, no 2(6), p. 445-455Article in journal (Refereed)
  • 35.
    Frykholm P., Hillered L., Långström B., Watanabe Y., Bergström M.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Increase of interstitial glycerol reflects the degree of ischaemic brain damage: a PET and microdialysis study in a middle cerebral artery occlusionreperfusion primate model2001In: Journal of Neurology, Neurosurgery And Psychiatry, no 2, p. 455-61Article in journal (Refereed)
  • 36.
    Gaul C., Arvidsson P., Bauer W., Gawley R., Seebach D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Computational reactIR-, and NMR-spectroscopic investigations on the chiral formyl anion equivalent N-(a-lithiomethylthiomet hyl)-4-isopropyl-5,5-diphenyloxazolidin-2-one and related compounds2001In: Chemistry--A European Journal, no 7 (19), p. 4117-4125Article in journal (Refereed)
  • 37.
    Ghirmai, Senait
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Synthesis of Organic Molecules for Nuclide Therapy. Studies on boron cage compounds and 9-aminoacridines2001Licentiate thesis, monograph (Other scientific)
  • 38.
    Gogoll, Adolf
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Johansson, Charlotte
    Axen, Andreas
    Grennberg, Helena
    Determination of absolute configuration of (pi-allyl)palladium complexes by NMR spectroscopy and stereoselective complexation2001In: Chemistry-A European Journal, ISSN 0947-6539, Vol. 7, no 2, p. 396-403Article in journal (Refereed)
    Abstract [en]

    The chiral chelating ligand N,N'-bis(phenylethyl)bispidine (1) forms a rigid cavity which accommodates (rc-allyl)palladium species with high selectivity In the resulting complex, the absolute configuration of the re-allyl ligand can be determined by the d

  • 39.
    Gustavsson, S Å
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Samskog, J
    Markides, K E
    Långström, B
    Studies of signal suppression in liquid chromatography - electrospray ionization mass spectrometry using volatile ion-pairing reagents2001In: J. of Chromatography A, no 937, p. 41-47Article in journal (Refereed)
  • 40. Gustavsson, Sven Åke
    et al.
    Samskog, Jenny
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry, Analytical Chemistry.
    Markides, Karin E
    Långström, Bengt
    Studies of signal suppression in liquid chromatography–electrospray ionization mass spectrometry using volatile ion-pairing reagents2001In: J Chromatogr A, Vol. 937, no 1-2, p. 41-47Article in journal (Refereed)
  • 41.
    Hartvig P., Bergström M., Långström B.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Use of positron emission tomography in analysing receptor function in vivo2001Article in journal (Other scientific)
  • 42.
    Häll Dimberg L., Sunnerheim K., Sundberg B., Walsh K.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Stability of Oat Avenanthramides2001Article in journal (Other scientific)
  • 43.
    Ikegami, H
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Buffer energy nuclear fusion2001In: Jpn. J. Appl. Phys., Vol. 40, p. 1-7Article in journal (Refereed)
  • 44.
    Jia, ZS
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Brandt, P
    Thibblin, A
    Is benzene oxide homoaromatic? A microcalorimetric study2001In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, ISSN 0002-7863, Vol. 123, no 42, p. 10147-10152Article in journal (Refereed)
    Abstract [en]

    Rate constants and heats of reaction for the aromatization of benzene oxide (1) and the acid-catalyzed aromatization of benzene hydrate (2) in highly aqueous solution (giving phenol and benzene, respectively, have been measured by heat-flow microcalorimet

  • 45.
    Jia, ZS
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Thibblin, A
    Acid-catalyzed solvolytic elimination (aromatization) of allylic ethers and alcohols2001In: JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, ISSN 1472-779X, no 3, p. 247-251Article in journal (Refereed)
    Abstract [en]

    Acid-catalyzed solvolysis of 1-methoxy-1-methyl-1,4-dihydronaphthalene (1-OMe) in 50 vol% acetonitrile in water yields exclusively the elimination product 1-methylnaphthalene (3). Neither intramolecular rearrangement giving 2-methoxy-4-methyl-1,2-dihydron

  • 46.
    Johansson, Charlotte
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Molecular Tools for Structure Determination by NMR Spectorscopy. Synthesis and application2001Licentiate thesis, monograph (Other scientific)
  • 47.
    Johnson, T
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry.
    Bergquist, J
    Ekman, R
    Nordhoff, E
    Schurenberg, M
    Klöppel, K D
    Muller, M
    Lerach, H
    Gobom, J
    A CE-MALDI interface based on the use of prestructured sample supports2001In: Anal. Chem., Vol. 73, no 8, p. 1670-1675Article in journal (Refereed)
  • 48.
    Jonsson, SY
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Farnegardh, K
    Backvall, JE
    Osmium-catalyzed asymmetric dihydroxylation of olefins by H2O2 using a biomimetic flavin-based coupled catalytic system2001In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, ISSN 0002-7863, Vol. 123, no 7, p. 1365-1371Article in journal (Refereed)
    Abstract [en]

    Selective cis-dihydroxylation of olefins with the aid of a triple catalytic system using H2O2 as the terminal oxidant has been developed. In this process Os(VI) is recycled to Os(VIII) by a coupled electron-transfer-mediator system based on N-methylmorpho

  • 49.
    Juvancz, Z
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Markides, KE
    Jicsinszky, L
    Ivanyi, R
    Chiral selective separation of tocainide by capillary electrophoresis using various cyclodextrin derivatives2001In: JOURNAL OF MICROCOLUMN SEPARATIONS, ISSN 1040-7685, Vol. 13, no 2, p. 62-68Article in journal (Refereed)
    Abstract [en]

    Chiral separation of tocainide, an antiarrythmic agent, was solved using the capillary electrophoresis method. Fifteen types of cyclodextrins were tried as chiral selective buffer additives, and baseline separation was achieved with five of them. The vari

  • 50.
    Kanski, J
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry.
    Drake, J
    Aksenova, M
    Engman, L
    Butterfield, DA
    Antioxidant activity of the organotellurium compound 3-[4-(N,N-dimethylamino)benzenetellurenyl]propanesulfonic acid against oxidative stress in synaptosomal membrane systems and neuronal cultures2001In: BRAIN RESEARCH, ISSN 0006-8993, Vol. 911, no 1, p. 12-21Article in journal (Refereed)
    Abstract [en]

    Antioxidant activities of 3-[4-(NN-dimethylamino) benzenetellurenyl]propane sulfonic acid sodium salt (NDBT) were evaluated in solution, red blood cells, synaptosomal membranes, and cultured hippocampal neuronal cells after exposure to peroxynitrite (ONOO

123 1 - 50 of 101
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